Home / 672,817.34-1,009,244.56-217,428.05

Finding the Fourth Proportional to 672,817.34, 1,009,244.56 and 217,428.05

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Solution

The fourth proportional to 672,817.34, 1,009,244.56 and 217,428.05 is: 326,148.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,817.34 : 1,009,244.56 = 217,428.05 : x
  2. Step 2: Convert to fraction form
    672,817.34/1,009,244.56 = 217,428.05/x
  3. Step 3: Cross multiply
    672,817.34x = 1,009,244.56 × 217,428.05
  4. Step 4: Simplify right side
    672,817.34x = 219,438,073,364.13
  5. Step 5: Solve for x
    x = 219,438,073,364.13/672,817.34
  6. Step 6: Final answer
    x = 326,148.07

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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.