Home / 435,869.46-653,841.81-120,326.40

Finding the Fourth Proportional to 435,869.46, 653,841.81 and 120,326.40

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Solution

The fourth proportional to 435,869.46, 653,841.81 and 120,326.40 is: 180,499.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,869.46 : 653,841.81 = 120,326.40 : x
  2. Step 2: Convert to fraction form
    435,869.46/653,841.81 = 120,326.40/x
  3. Step 3: Cross multiply
    435,869.46x = 653,841.81 × 120,326.40
  4. Step 4: Simplify right side
    435,869.46x = 78,674,431,166.78
  5. Step 5: Solve for x
    x = 78,674,431,166.78/435,869.46
  6. Step 6: Final answer
    x = 180,499.99

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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.