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Finding the Fourth Proportional to 978,049.40, 1,465,691.70 and 602,958.20

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Solution

The fourth proportional to 978,049.40, 1,465,691.70 and 602,958.20 is: 903,585.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,049.40 : 1,465,691.70 = 602,958.20 : x
  2. Step 2: Convert to fraction form
    978,049.40/1,465,691.70 = 602,958.20/x
  3. Step 3: Cross multiply
    978,049.40x = 1,465,691.70 × 602,958.20
  4. Step 4: Simplify right side
    978,049.40x = 883,750,829,186.94
  5. Step 5: Solve for x
    x = 883,750,829,186.94/978,049.40
  6. Step 6: Final answer
    x = 903,585.06

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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.