Home / 672,010.92-1,007,666.38-316,929.60

Finding the Fourth Proportional to 672,010.92, 1,007,666.38 and 316,929.60

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Solution

The fourth proportional to 672,010.92, 1,007,666.38 and 316,929.60 is: 475,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,010.92 : 1,007,666.38 = 316,929.60 : x
  2. Step 2: Convert to fraction form
    672,010.92/1,007,666.38 = 316,929.60/x
  3. Step 3: Cross multiply
    672,010.92x = 1,007,666.38 × 316,929.60
  4. Step 4: Simplify right side
    672,010.92x = 319,359,302,746.85
  5. Step 5: Solve for x
    x = 319,359,302,746.85/672,010.92
  6. Step 6: Final answer
    x = 475,229.34

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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.