Home / 435,618.80-653,428.20-396,252.80

Finding the Fourth Proportional to 435,618.80, 653,428.20 and 396,252.80

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Solution

The fourth proportional to 435,618.80, 653,428.20 and 396,252.80 is: 594,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,618.80 : 653,428.20 = 396,252.80 : x
  2. Step 2: Convert to fraction form
    435,618.80/653,428.20 = 396,252.80/x
  3. Step 3: Cross multiply
    435,618.80x = 653,428.20 × 396,252.80
  4. Step 4: Simplify right side
    435,618.80x = 258,922,753,848.96
  5. Step 5: Solve for x
    x = 258,922,753,848.96/435,618.80
  6. Step 6: Final answer
    x = 594,379.20

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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.