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Finding the Fourth Proportional to 712,616, 983,381.28 and 426,294.32

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Solution

The fourth proportional to 712,616, 983,381.28 and 426,294.32 is: 588,268.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,616 : 983,381.28 = 426,294.32 : x
  2. Step 2: Convert to fraction form
    712,616/983,381.28 = 426,294.32/x
  3. Step 3: Cross multiply
    712,616x = 983,381.28 × 426,294.32
  4. Step 4: Simplify right side
    712,616x = 419,209,854,058.33
  5. Step 5: Solve for x
    x = 419,209,854,058.33/712,616
  6. Step 6: Final answer
    x = 588,268.93

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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.