Home / 670,312.80-1,005,469.20-249,501.60

Finding the Fourth Proportional to 670,312.80, 1,005,469.20 and 249,501.60

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Solution

The fourth proportional to 670,312.80, 1,005,469.20 and 249,501.60 is: 374,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,312.80 : 1,005,469.20 = 249,501.60 : x
  2. Step 2: Convert to fraction form
    670,312.80/1,005,469.20 = 249,501.60/x
  3. Step 3: Cross multiply
    670,312.80x = 1,005,469.20 × 249,501.60
  4. Step 4: Simplify right side
    670,312.80x = 250,866,174,150.72
  5. Step 5: Solve for x
    x = 250,866,174,150.72/670,312.80
  6. Step 6: Final answer
    x = 374,252.40

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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.