Home / 1,122,405.52-1,549,429.41-715,065.88

Finding the Fourth Proportional to 1,122,405.52, 1,549,429.41 and 715,065.88

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Solution

The fourth proportional to 1,122,405.52, 1,549,429.41 and 715,065.88 is: 987,115.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,405.52 : 1,549,429.41 = 715,065.88 : x
  2. Step 2: Convert to fraction form
    1,122,405.52/1,549,429.41 = 715,065.88/x
  3. Step 3: Cross multiply
    1,122,405.52x = 1,549,429.41 × 715,065.88
  4. Step 4: Simplify right side
    1,122,405.52x = 1,107,944,104,559.53
  5. Step 5: Solve for x
    x = 1,107,944,104,559.53/1,122,405.52
  6. Step 6: Final answer
    x = 987,115.69

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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.