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Finding the Fourth Proportional to 712,755.74, 983,602.89 and 426,275.82

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Solution

The fourth proportional to 712,755.74, 983,602.89 and 426,275.82 is: 588,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,755.74 : 983,602.89 = 426,275.82 : x
  2. Step 2: Convert to fraction form
    712,755.74/983,602.89 = 426,275.82/x
  3. Step 3: Cross multiply
    712,755.74x = 983,602.89 × 426,275.82
  4. Step 4: Simplify right side
    712,755.74x = 419,286,128,489.12
  5. Step 5: Solve for x
    x = 419,286,128,489.12/712,755.74
  6. Step 6: Final answer
    x = 588,260.62

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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.