Home / 747,714.90-1,121,572.35-546,948.30

Finding the Fourth Proportional to 747,714.90, 1,121,572.35 and 546,948.30

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Solution

The fourth proportional to 747,714.90, 1,121,572.35 and 546,948.30 is: 820,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,714.90 : 1,121,572.35 = 546,948.30 : x
  2. Step 2: Convert to fraction form
    747,714.90/1,121,572.35 = 546,948.30/x
  3. Step 3: Cross multiply
    747,714.90x = 1,121,572.35 × 546,948.30
  4. Step 4: Simplify right side
    747,714.90x = 613,442,090,159.51
  5. Step 5: Solve for x
    x = 613,442,090,159.51/747,714.90
  6. Step 6: Final answer
    x = 820,422.45

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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.