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Finding the Fourth Proportional to 660,096.20, 992,258.40 and 613,294.40

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Solution

The fourth proportional to 660,096.20, 992,258.40 and 613,294.40 is: 921,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,096.20 : 992,258.40 = 613,294.40 : x
  2. Step 2: Convert to fraction form
    660,096.20/992,258.40 = 613,294.40/x
  3. Step 3: Cross multiply
    660,096.20x = 992,258.40 × 613,294.40
  4. Step 4: Simplify right side
    660,096.20x = 608,546,520,072.96
  5. Step 5: Solve for x
    x = 608,546,520,072.96/660,096.20
  6. Step 6: Final answer
    x = 921,905.81

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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.