Home / 802,404.46-1,107,318.41-439,830.78

Finding the Fourth Proportional to 802,404.46, 1,107,318.41 and 439,830.78

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Solution

The fourth proportional to 802,404.46, 1,107,318.41 and 439,830.78 is: 606,966.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,404.46 : 1,107,318.41 = 439,830.78 : x
  2. Step 2: Convert to fraction form
    802,404.46/1,107,318.41 = 439,830.78/x
  3. Step 3: Cross multiply
    802,404.46x = 1,107,318.41 × 439,830.78
  4. Step 4: Simplify right side
    802,404.46x = 487,032,723,382.40
  5. Step 5: Solve for x
    x = 487,032,723,382.40/802,404.46
  6. Step 6: Final answer
    x = 606,966.62

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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.