Home / 672,869.76-1,009,486.08-223,663.20

Finding the Fourth Proportional to 672,869.76, 1,009,486.08 and 223,663.20

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Solution

The fourth proportional to 672,869.76, 1,009,486.08 and 223,663.20 is: 335,555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,869.76 : 1,009,486.08 = 223,663.20 : x
  2. Step 2: Convert to fraction form
    672,869.76/1,009,486.08 = 223,663.20/x
  3. Step 3: Cross multiply
    672,869.76x = 1,009,486.08 × 223,663.20
  4. Step 4: Simplify right side
    672,869.76x = 225,784,887,008.26
  5. Step 5: Solve for x
    x = 225,784,887,008.26/672,869.76
  6. Step 6: Final answer
    x = 335,555.11

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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.