Home / 1,007,280.56-1,391,228.16-667,158.32

Finding the Fourth Proportional to 1,007,280.56, 1,391,228.16 and 667,158.32

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Solution

The fourth proportional to 1,007,280.56, 1,391,228.16 and 667,158.32 is: 921,460.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,280.56 : 1,391,228.16 = 667,158.32 : x
  2. Step 2: Convert to fraction form
    1,007,280.56/1,391,228.16 = 667,158.32/x
  3. Step 3: Cross multiply
    1,007,280.56x = 1,391,228.16 × 667,158.32
  4. Step 4: Simplify right side
    1,007,280.56x = 928,169,442,938.52
  5. Step 5: Solve for x
    x = 928,169,442,938.52/1,007,280.56
  6. Step 6: Final answer
    x = 921,460.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.