Home / 804,953.10-1,207,429.65-431,705.10

Finding the Fourth Proportional to 804,953.10, 1,207,429.65 and 431,705.10

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Solution

The fourth proportional to 804,953.10, 1,207,429.65 and 431,705.10 is: 647,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,953.10 : 1,207,429.65 = 431,705.10 : x
  2. Step 2: Convert to fraction form
    804,953.10/1,207,429.65 = 431,705.10/x
  3. Step 3: Cross multiply
    804,953.10x = 1,207,429.65 × 431,705.10
  4. Step 4: Simplify right side
    804,953.10x = 521,253,537,796.22
  5. Step 5: Solve for x
    x = 521,253,537,796.22/804,953.10
  6. Step 6: Final answer
    x = 647,557.65

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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.