Home / 669,853.80-1,004,780.70-249,042.60

Finding the Fourth Proportional to 669,853.80, 1,004,780.70 and 249,042.60

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Solution

The fourth proportional to 669,853.80, 1,004,780.70 and 249,042.60 is: 373,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,853.80 : 1,004,780.70 = 249,042.60 : x
  2. Step 2: Convert to fraction form
    669,853.80/1,004,780.70 = 249,042.60/x
  3. Step 3: Cross multiply
    669,853.80x = 1,004,780.70 × 249,042.60
  4. Step 4: Simplify right side
    669,853.80x = 250,233,197,957.82
  5. Step 5: Solve for x
    x = 250,233,197,957.82/669,853.80
  6. Step 6: Final answer
    x = 373,563.90

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.