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Finding the Fourth Proportional to 632,423.20, 872,750.34 and 345,937

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Solution

The fourth proportional to 632,423.20, 872,750.34 and 345,937 is: 477,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,423.20 : 872,750.34 = 345,937 : x
  2. Step 2: Convert to fraction form
    632,423.20/872,750.34 = 345,937/x
  3. Step 3: Cross multiply
    632,423.20x = 872,750.34 × 345,937
  4. Step 4: Simplify right side
    632,423.20x = 301,916,634,368.58
  5. Step 5: Solve for x
    x = 301,916,634,368.58/632,423.20
  6. Step 6: Final answer
    x = 477,396.52

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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.