Home / 1,387,311.46-2,081,133.78-488,567.32

Finding the Fourth Proportional to 1,387,311.46, 2,081,133.78 and 488,567.32

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Solution

The fourth proportional to 1,387,311.46, 2,081,133.78 and 488,567.32 is: 732,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,311.46 : 2,081,133.78 = 488,567.32 : x
  2. Step 2: Convert to fraction form
    1,387,311.46/2,081,133.78 = 488,567.32/x
  3. Step 3: Cross multiply
    1,387,311.46x = 2,081,133.78 × 488,567.32
  4. Step 4: Simplify right side
    1,387,311.46x = 1,016,773,953,456.07
  5. Step 5: Solve for x
    x = 1,016,773,953,456.07/1,387,311.46
  6. Step 6: Final answer
    x = 732,909.65

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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.