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Finding the Fourth Proportional to 642,677.80, 958,270.96 and 625,021.96

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Solution

The fourth proportional to 642,677.80, 958,270.96 and 625,021.96 is: 931,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,677.80 : 958,270.96 = 625,021.96 : x
  2. Step 2: Convert to fraction form
    642,677.80/958,270.96 = 625,021.96/x
  3. Step 3: Cross multiply
    642,677.80x = 958,270.96 × 625,021.96
  4. Step 4: Simplify right side
    642,677.80x = 598,940,393,630.28
  5. Step 5: Solve for x
    x = 598,940,393,630.28/642,677.80
  6. Step 6: Final answer
    x = 931,945.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.