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Finding the Fourth Proportional to 978,966.30, 1,468,449.45 and 605,718.30

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Solution

The fourth proportional to 978,966.30, 1,468,449.45 and 605,718.30 is: 908,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,966.30 : 1,468,449.45 = 605,718.30 : x
  2. Step 2: Convert to fraction form
    978,966.30/1,468,449.45 = 605,718.30/x
  3. Step 3: Cross multiply
    978,966.30x = 1,468,449.45 × 605,718.30
  4. Step 4: Simplify right side
    978,966.30x = 889,466,704,489.94
  5. Step 5: Solve for x
    x = 889,466,704,489.94/978,966.30
  6. Step 6: Final answer
    x = 908,577.45

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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.