Home / 485,125.40-727,817.70-432,896.60

Finding the Fourth Proportional to 485,125.40, 727,817.70 and 432,896.60

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Solution

The fourth proportional to 485,125.40, 727,817.70 and 432,896.60 is: 649,460.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,125.40 : 727,817.70 = 432,896.60 : x
  2. Step 2: Convert to fraction form
    485,125.40/727,817.70 = 432,896.60/x
  3. Step 3: Cross multiply
    485,125.40x = 727,817.70 × 432,896.60
  4. Step 4: Simplify right side
    485,125.40x = 315,069,807,749.82
  5. Step 5: Solve for x
    x = 315,069,807,749.82/485,125.40
  6. Step 6: Final answer
    x = 649,460.55

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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.