Home / 856,666.92-1,182,174.54-469,477.61

Finding the Fourth Proportional to 856,666.92, 1,182,174.54 and 469,477.61

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Solution

The fourth proportional to 856,666.92, 1,182,174.54 and 469,477.61 is: 647,864.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,666.92 : 1,182,174.54 = 469,477.61 : x
  2. Step 2: Convert to fraction form
    856,666.92/1,182,174.54 = 469,477.61/x
  3. Step 3: Cross multiply
    856,666.92x = 1,182,174.54 × 469,477.61
  4. Step 4: Simplify right side
    856,666.92x = 555,004,477,642.05
  5. Step 5: Solve for x
    x = 555,004,477,642.05/856,666.92
  6. Step 6: Final answer
    x = 647,864.96

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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.