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Finding the Fourth Proportional to 553,308.80, 829,963.20 and 304,476.80

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Solution

The fourth proportional to 553,308.80, 829,963.20 and 304,476.80 is: 456,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,308.80 : 829,963.20 = 304,476.80 : x
  2. Step 2: Convert to fraction form
    553,308.80/829,963.20 = 304,476.80/x
  3. Step 3: Cross multiply
    553,308.80x = 829,963.20 × 304,476.80
  4. Step 4: Simplify right side
    553,308.80x = 252,704,539,253.76
  5. Step 5: Solve for x
    x = 252,704,539,253.76/553,308.80
  6. Step 6: Final answer
    x = 456,715.20

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Similar ratio
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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.