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Finding the Fourth Proportional to 559,971.80, 839,957.70 and 472,491.80

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Solution

The fourth proportional to 559,971.80, 839,957.70 and 472,491.80 is: 708,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,971.80 : 839,957.70 = 472,491.80 : x
  2. Step 2: Convert to fraction form
    559,971.80/839,957.70 = 472,491.80/x
  3. Step 3: Cross multiply
    559,971.80x = 839,957.70 × 472,491.80
  4. Step 4: Simplify right side
    559,971.80x = 396,873,125,596.86
  5. Step 5: Solve for x
    x = 396,873,125,596.86/559,971.80
  6. Step 6: Final answer
    x = 708,737.70

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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.