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Finding the Fourth Proportional to 472,881.06, 652,672.98 and 289,151.04

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Solution

The fourth proportional to 472,881.06, 652,672.98 and 289,151.04 is: 399,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,881.06 : 652,672.98 = 289,151.04 : x
  2. Step 2: Convert to fraction form
    472,881.06/652,672.98 = 289,151.04/x
  3. Step 3: Cross multiply
    472,881.06x = 652,672.98 × 289,151.04
  4. Step 4: Simplify right side
    472,881.06x = 188,721,070,946.90
  5. Step 5: Solve for x
    x = 188,721,070,946.90/472,881.06
  6. Step 6: Final answer
    x = 399,087.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.