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Finding the Fourth Proportional to 615,847.40, 924,078.30 and 349,812.20

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Solution

The fourth proportional to 615,847.40, 924,078.30 and 349,812.20 is: 524,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,847.40 : 924,078.30 = 349,812.20 : x
  2. Step 2: Convert to fraction form
    615,847.40/924,078.30 = 349,812.20/x
  3. Step 3: Cross multiply
    615,847.40x = 924,078.30 × 349,812.20
  4. Step 4: Simplify right side
    615,847.40x = 323,253,863,095.26
  5. Step 5: Solve for x
    x = 323,253,863,095.26/615,847.40
  6. Step 6: Final answer
    x = 524,892.80

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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.