Home / 435,845.32-653,719.02-120,347.08

Finding the Fourth Proportional to 435,845.32, 653,719.02 and 120,347.08

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Solution

The fourth proportional to 435,845.32, 653,719.02 and 120,347.08 is: 180,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,845.32 : 653,719.02 = 120,347.08 : x
  2. Step 2: Convert to fraction form
    435,845.32/653,719.02 = 120,347.08/x
  3. Step 3: Cross multiply
    435,845.32x = 653,719.02 × 120,347.08
  4. Step 4: Simplify right side
    435,845.32x = 78,673,175,197.46
  5. Step 5: Solve for x
    x = 78,673,175,197.46/435,845.32
  6. Step 6: Final answer
    x = 180,507.10

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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.