Home / 435,848.28-653,809.96-120,305.20

Finding the Fourth Proportional to 435,848.28, 653,809.96 and 120,305.20

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Solution

The fourth proportional to 435,848.28, 653,809.96 and 120,305.20 is: 180,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,848.28 : 653,809.96 = 120,305.20 : x
  2. Step 2: Convert to fraction form
    435,848.28/653,809.96 = 120,305.20/x
  3. Step 3: Cross multiply
    435,848.28x = 653,809.96 × 120,305.20
  4. Step 4: Simplify right side
    435,848.28x = 78,656,737,999.79
  5. Step 5: Solve for x
    x = 78,656,737,999.79/435,848.28
  6. Step 6: Final answer
    x = 180,468.16

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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.