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Finding the Fourth Proportional to 615,854.40, 924,088.80 and 349,819.20

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Solution

The fourth proportional to 615,854.40, 924,088.80 and 349,819.20 is: 524,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,854.40 : 924,088.80 = 349,819.20 : x
  2. Step 2: Convert to fraction form
    615,854.40/924,088.80 = 349,819.20/x
  3. Step 3: Cross multiply
    615,854.40x = 924,088.80 × 349,819.20
  4. Step 4: Simplify right side
    615,854.40x = 323,264,004,744.96
  5. Step 5: Solve for x
    x = 323,264,004,744.96/615,854.40
  6. Step 6: Final answer
    x = 524,903.30

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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.