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Finding the Fourth Proportional to 713,500.40, 1,070,250.60 and 476,956.40

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Solution

The fourth proportional to 713,500.40, 1,070,250.60 and 476,956.40 is: 715,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,500.40 : 1,070,250.60 = 476,956.40 : x
  2. Step 2: Convert to fraction form
    713,500.40/1,070,250.60 = 476,956.40/x
  3. Step 3: Cross multiply
    713,500.40x = 1,070,250.60 × 476,956.40
  4. Step 4: Simplify right side
    713,500.40x = 510,462,873,273.84
  5. Step 5: Solve for x
    x = 510,462,873,273.84/713,500.40
  6. Step 6: Final answer
    x = 715,434.60

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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.