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Finding the Fourth Proportional to 713,124.52, 984,119.38 and 390,827.48

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Solution

The fourth proportional to 713,124.52, 984,119.38 and 390,827.48 is: 539,346.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,124.52 : 984,119.38 = 390,827.48 : x
  2. Step 2: Convert to fraction form
    713,124.52/984,119.38 = 390,827.48/x
  3. Step 3: Cross multiply
    713,124.52x = 984,119.38 × 390,827.48
  4. Step 4: Simplify right side
    713,124.52x = 384,620,897,304.56
  5. Step 5: Solve for x
    x = 384,620,897,304.56/713,124.52
  6. Step 6: Final answer
    x = 539,346.06

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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.