Home / 424,588.20-636,888.68-109,038.12

Finding the Fourth Proportional to 424,588.20, 636,888.68 and 109,038.12

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Solution

The fourth proportional to 424,588.20, 636,888.68 and 109,038.12 is: 163,558.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,588.20 : 636,888.68 = 109,038.12 : x
  2. Step 2: Convert to fraction form
    424,588.20/636,888.68 = 109,038.12/x
  3. Step 3: Cross multiply
    424,588.20x = 636,888.68 × 109,038.12
  4. Step 4: Simplify right side
    424,588.20x = 69,445,144,316.48
  5. Step 5: Solve for x
    x = 69,445,144,316.48/424,588.20
  6. Step 6: Final answer
    x = 163,558.82

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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.