Home / 567,013.07-781,401.42-405,587.85

Finding the Fourth Proportional to 567,013.07, 781,401.42 and 405,587.85

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Solution

The fourth proportional to 567,013.07, 781,401.42 and 405,587.85 is: 558,941.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,013.07 : 781,401.42 = 405,587.85 : x
  2. Step 2: Convert to fraction form
    567,013.07/781,401.42 = 405,587.85/x
  3. Step 3: Cross multiply
    567,013.07x = 781,401.42 × 405,587.85
  4. Step 4: Simplify right side
    567,013.07x = 316,926,921,924.75
  5. Step 5: Solve for x
    x = 316,926,921,924.75/567,013.07
  6. Step 6: Final answer
    x = 558,941.13

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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.