Home / 755,299.46-1,042,326.55-411,145.28

Finding the Fourth Proportional to 755,299.46, 1,042,326.55 and 411,145.28

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Solution

The fourth proportional to 755,299.46, 1,042,326.55 and 411,145.28 is: 567,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,299.46 : 1,042,326.55 = 411,145.28 : x
  2. Step 2: Convert to fraction form
    755,299.46/1,042,326.55 = 411,145.28/x
  3. Step 3: Cross multiply
    755,299.46x = 1,042,326.55 × 411,145.28
  4. Step 4: Simplify right side
    755,299.46x = 428,547,642,829.14
  5. Step 5: Solve for x
    x = 428,547,642,829.14/755,299.46
  6. Step 6: Final answer
    x = 567,387.72

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.