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Finding the Fourth Proportional to 458,773.60, 686,799.60 and 340,967.20

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Solution

The fourth proportional to 458,773.60, 686,799.60 and 340,967.20 is: 510,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,773.60 : 686,799.60 = 340,967.20 : x
  2. Step 2: Convert to fraction form
    458,773.60/686,799.60 = 340,967.20/x
  3. Step 3: Cross multiply
    458,773.60x = 686,799.60 × 340,967.20
  4. Step 4: Simplify right side
    458,773.60x = 234,176,136,573.12
  5. Step 5: Solve for x
    x = 234,176,136,573.12/458,773.60
  6. Step 6: Final answer
    x = 510,439.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.