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Finding the Fourth Proportional to 615,570.40, 924,133.20 and 331,487.20

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Solution

The fourth proportional to 615,570.40, 924,133.20 and 331,487.20 is: 497,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,570.40 : 924,133.20 = 331,487.20 : x
  2. Step 2: Convert to fraction form
    615,570.40/924,133.20 = 331,487.20/x
  3. Step 3: Cross multiply
    615,570.40x = 924,133.20 × 331,487.20
  4. Step 4: Simplify right side
    615,570.40x = 306,338,326,895.04
  5. Step 5: Solve for x
    x = 306,338,326,895.04/615,570.40
  6. Step 6: Final answer
    x = 497,649.54

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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.