Home / 435,129.15-653,171.06-345,746.46

Finding the Fourth Proportional to 435,129.15, 653,171.06 and 345,746.46

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Solution

The fourth proportional to 435,129.15, 653,171.06 and 345,746.46 is: 518,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,129.15 : 653,171.06 = 345,746.46 : x
  2. Step 2: Convert to fraction form
    435,129.15/653,171.06 = 345,746.46/x
  3. Step 3: Cross multiply
    435,129.15x = 653,171.06 × 345,746.46
  4. Step 4: Simplify right side
    435,129.15x = 225,831,581,769.45
  5. Step 5: Solve for x
    x = 225,831,581,769.45/435,129.15
  6. Step 6: Final answer
    x = 518,998.97

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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.