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Finding the Fourth Proportional to 632,379.07, 872,689.98 and 345,892.87

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Solution

The fourth proportional to 632,379.07, 872,689.98 and 345,892.87 is: 477,335.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,379.07 : 872,689.98 = 345,892.87 : x
  2. Step 2: Convert to fraction form
    632,379.07/872,689.98 = 345,892.87/x
  3. Step 3: Cross multiply
    632,379.07x = 872,689.98 × 345,892.87
  4. Step 4: Simplify right side
    632,379.07x = 301,857,241,802.44
  5. Step 5: Solve for x
    x = 301,857,241,802.44/632,379.07
  6. Step 6: Final answer
    x = 477,335.91

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1.5x scale

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.