Home / 1,216,777.47-1,679,122.07-672,898.78

Finding the Fourth Proportional to 1,216,777.47, 1,679,122.07 and 672,898.78

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Solution

The fourth proportional to 1,216,777.47, 1,679,122.07 and 672,898.78 is: 928,583.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,777.47 : 1,679,122.07 = 672,898.78 : x
  2. Step 2: Convert to fraction form
    1,216,777.47/1,679,122.07 = 672,898.78/x
  3. Step 3: Cross multiply
    1,216,777.47x = 1,679,122.07 × 672,898.78
  4. Step 4: Simplify right side
    1,216,777.47x = 1,129,879,189,009.58
  5. Step 5: Solve for x
    x = 1,129,879,189,009.58/1,216,777.47
  6. Step 6: Final answer
    x = 928,583.26

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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.