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Finding the Fourth Proportional to 632,384.10, 872,696.88 and 345,897.90

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Solution

The fourth proportional to 632,384.10, 872,696.88 and 345,897.90 is: 477,342.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,384.10 : 872,696.88 = 345,897.90 : x
  2. Step 2: Convert to fraction form
    632,384.10/872,696.88 = 345,897.90/x
  3. Step 3: Cross multiply
    632,384.10x = 872,696.88 × 345,897.90
  4. Step 4: Simplify right side
    632,384.10x = 301,864,018,128.55
  5. Step 5: Solve for x
    x = 301,864,018,128.55/632,384.10
  6. Step 6: Final answer
    x = 477,342.83

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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.