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Finding the Fourth Proportional to 607,529.80, 910,565.70 and 417,989.80

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Solution

The fourth proportional to 607,529.80, 910,565.70 and 417,989.80 is: 626,483.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,529.80 : 910,565.70 = 417,989.80 : x
  2. Step 2: Convert to fraction form
    607,529.80/910,565.70 = 417,989.80/x
  3. Step 3: Cross multiply
    607,529.80x = 910,565.70 × 417,989.80
  4. Step 4: Simplify right side
    607,529.80x = 380,607,174,829.86
  5. Step 5: Solve for x
    x = 380,607,174,829.86/607,529.80
  6. Step 6: Final answer
    x = 626,483.14

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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.