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Finding the Fourth Proportional to 431,564.30, 603,402.70 and 431,564.30

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Solution

The fourth proportional to 431,564.30, 603,402.70 and 431,564.30 is: 603,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,564.30 : 603,402.70 = 431,564.30 : x
  2. Step 2: Convert to fraction form
    431,564.30/603,402.70 = 431,564.30/x
  3. Step 3: Cross multiply
    431,564.30x = 603,402.70 × 431,564.30
  4. Step 4: Simplify right side
    431,564.30x = 260,407,063,843.61
  5. Step 5: Solve for x
    x = 260,407,063,843.61/431,564.30
  6. Step 6: Final answer
    x = 603,402.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.