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Finding the Fourth Proportional to 713,589.60, 984,799.20 and 471,447.36

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Solution

The fourth proportional to 713,589.60, 984,799.20 and 471,447.36 is: 650,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,589.60 : 984,799.20 = 471,447.36 : x
  2. Step 2: Convert to fraction form
    713,589.60/984,799.20 = 471,447.36/x
  3. Step 3: Cross multiply
    713,589.60x = 984,799.20 × 471,447.36
  4. Step 4: Simplify right side
    713,589.60x = 464,280,982,970.11
  5. Step 5: Solve for x
    x = 464,280,982,970.11/713,589.60
  6. Step 6: Final answer
    x = 650,627.45

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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.