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Finding the Fourth Proportional to 572,545.60, 858,127.20 and 291,918.40

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Solution

The fourth proportional to 572,545.60, 858,127.20 and 291,918.40 is: 437,525.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,545.60 : 858,127.20 = 291,918.40 : x
  2. Step 2: Convert to fraction form
    572,545.60/858,127.20 = 291,918.40/x
  3. Step 3: Cross multiply
    572,545.60x = 858,127.20 × 291,918.40
  4. Step 4: Simplify right side
    572,545.60x = 250,503,119,220.48
  5. Step 5: Solve for x
    x = 250,503,119,220.48/572,545.60
  6. Step 6: Final answer
    x = 437,525.18

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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.