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Finding the Fourth Proportional to 615,842.90, 924,071.55 and 349,807.70

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Solution

The fourth proportional to 615,842.90, 924,071.55 and 349,807.70 is: 524,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,842.90 : 924,071.55 = 349,807.70 : x
  2. Step 2: Convert to fraction form
    615,842.90/924,071.55 = 349,807.70/x
  3. Step 3: Cross multiply
    615,842.90x = 924,071.55 × 349,807.70
  4. Step 4: Simplify right side
    615,842.90x = 323,247,343,540.94
  5. Step 5: Solve for x
    x = 323,247,343,540.94/615,842.90
  6. Step 6: Final answer
    x = 524,886.04

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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.