Home / 1,216,506.76-1,678,707.12-672,599.86

Finding the Fourth Proportional to 1,216,506.76, 1,678,707.12 and 672,599.86

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Solution

The fourth proportional to 1,216,506.76, 1,678,707.12 and 672,599.86 is: 928,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,506.76 : 1,678,707.12 = 672,599.86 : x
  2. Step 2: Convert to fraction form
    1,216,506.76/1,678,707.12 = 672,599.86/x
  3. Step 3: Cross multiply
    1,216,506.76x = 1,678,707.12 × 672,599.86
  4. Step 4: Simplify right side
    1,216,506.76x = 1,129,098,173,893.00
  5. Step 5: Solve for x
    x = 1,129,098,173,893.00/1,216,506.76
  6. Step 6: Final answer
    x = 928,147.88

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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.