Home / 1,005,874.76-1,388,079.42-553,165.76

Finding the Fourth Proportional to 1,005,874.76, 1,388,079.42 and 553,165.76

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Solution

The fourth proportional to 1,005,874.76, 1,388,079.42 and 553,165.76 is: 763,353.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,874.76 : 1,388,079.42 = 553,165.76 : x
  2. Step 2: Convert to fraction form
    1,005,874.76/1,388,079.42 = 553,165.76/x
  3. Step 3: Cross multiply
    1,005,874.76x = 1,388,079.42 × 553,165.76
  4. Step 4: Simplify right side
    1,005,874.76x = 767,838,007,304.66
  5. Step 5: Solve for x
    x = 767,838,007,304.66/1,005,874.76
  6. Step 6: Final answer
    x = 763,353.49

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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.