Home / 712,442.40-1,070,218.80-502,490.40

Finding the Fourth Proportional to 712,442.40, 1,070,218.80 and 502,490.40

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Solution

The fourth proportional to 712,442.40, 1,070,218.80 and 502,490.40 is: 754,832.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,442.40 : 1,070,218.80 = 502,490.40 : x
  2. Step 2: Convert to fraction form
    712,442.40/1,070,218.80 = 502,490.40/x
  3. Step 3: Cross multiply
    712,442.40x = 1,070,218.80 × 502,490.40
  4. Step 4: Simplify right side
    712,442.40x = 537,774,672,899.52
  5. Step 5: Solve for x
    x = 537,774,672,899.52/712,442.40
  6. Step 6: Final answer
    x = 754,832.49

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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.