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Finding the Fourth Proportional to 554,952.80, 832,429.20 and 478,845.20

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Solution

The fourth proportional to 554,952.80, 832,429.20 and 478,845.20 is: 718,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,952.80 : 832,429.20 = 478,845.20 : x
  2. Step 2: Convert to fraction form
    554,952.80/832,429.20 = 478,845.20/x
  3. Step 3: Cross multiply
    554,952.80x = 832,429.20 × 478,845.20
  4. Step 4: Simplify right side
    554,952.80x = 398,604,726,759.84
  5. Step 5: Solve for x
    x = 398,604,726,759.84/554,952.80
  6. Step 6: Final answer
    x = 718,267.80

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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.