Home / 1,318,979.28-1,820,232.72-746,008.32

Finding the Fourth Proportional to 1,318,979.28, 1,820,232.72 and 746,008.32

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Solution

The fourth proportional to 1,318,979.28, 1,820,232.72 and 746,008.32 is: 1,029,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,979.28 : 1,820,232.72 = 746,008.32 : x
  2. Step 2: Convert to fraction form
    1,318,979.28/1,820,232.72 = 746,008.32/x
  3. Step 3: Cross multiply
    1,318,979.28x = 1,820,232.72 × 746,008.32
  4. Step 4: Simplify right side
    1,318,979.28x = 1,357,908,753,456.23
  5. Step 5: Solve for x
    x = 1,357,908,753,456.23/1,318,979.28
  6. Step 6: Final answer
    x = 1,029,514.85

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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.