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Finding the Fourth Proportional to 615,921.80, 924,228.30 and 260,875.40

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Solution

The fourth proportional to 615,921.80, 924,228.30 and 260,875.40 is: 391,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,921.80 : 924,228.30 = 260,875.40 : x
  2. Step 2: Convert to fraction form
    615,921.80/924,228.30 = 260,875.40/x
  3. Step 3: Cross multiply
    615,921.80x = 924,228.30 × 260,875.40
  4. Step 4: Simplify right side
    615,921.80x = 241,108,427,453.82
  5. Step 5: Solve for x
    x = 241,108,427,453.82/615,921.80
  6. Step 6: Final answer
    x = 391,459.48

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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.