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Finding the Fourth Proportional to 897,815.31, 1,346,724.50 and 719,037.78

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Solution

The fourth proportional to 897,815.31, 1,346,724.50 and 719,037.78 is: 1,078,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,815.31 : 1,346,724.50 = 719,037.78 : x
  2. Step 2: Convert to fraction form
    897,815.31/1,346,724.50 = 719,037.78/x
  3. Step 3: Cross multiply
    897,815.31x = 1,346,724.50 × 719,037.78
  4. Step 4: Simplify right side
    897,815.31x = 968,345,791,156.42
  5. Step 5: Solve for x
    x = 968,345,791,156.42/897,815.31
  6. Step 6: Final answer
    x = 1,078,557.90

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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.