Home / 695,726.70-1,042,380.45-320,981.10

Finding the Fourth Proportional to 695,726.70, 1,042,380.45 and 320,981.10

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Solution

The fourth proportional to 695,726.70, 1,042,380.45 and 320,981.10 is: 480,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,726.70 : 1,042,380.45 = 320,981.10 : x
  2. Step 2: Convert to fraction form
    695,726.70/1,042,380.45 = 320,981.10/x
  3. Step 3: Cross multiply
    695,726.70x = 1,042,380.45 × 320,981.10
  4. Step 4: Simplify right side
    695,726.70x = 334,584,423,459.50
  5. Step 5: Solve for x
    x = 334,584,423,459.50/695,726.70
  6. Step 6: Final answer
    x = 480,913.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.