Home / 670,390.20-1,005,585.30-197,123.40

Finding the Fourth Proportional to 670,390.20, 1,005,585.30 and 197,123.40

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Solution

The fourth proportional to 670,390.20, 1,005,585.30 and 197,123.40 is: 295,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,390.20 : 1,005,585.30 = 197,123.40 : x
  2. Step 2: Convert to fraction form
    670,390.20/1,005,585.30 = 197,123.40/x
  3. Step 3: Cross multiply
    670,390.20x = 1,005,585.30 × 197,123.40
  4. Step 4: Simplify right side
    670,390.20x = 198,224,393,326.02
  5. Step 5: Solve for x
    x = 198,224,393,326.02/670,390.20
  6. Step 6: Final answer
    x = 295,685.10

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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.