Home / 915,630.30-1,374,101.55-515,846.70

Finding the Fourth Proportional to 915,630.30, 1,374,101.55 and 515,846.70

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Solution

The fourth proportional to 915,630.30, 1,374,101.55 and 515,846.70 is: 774,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,630.30 : 1,374,101.55 = 515,846.70 : x
  2. Step 2: Convert to fraction form
    915,630.30/1,374,101.55 = 515,846.70/x
  3. Step 3: Cross multiply
    915,630.30x = 1,374,101.55 × 515,846.70
  4. Step 4: Simplify right side
    915,630.30x = 708,825,750,032.39
  5. Step 5: Solve for x
    x = 708,825,750,032.39/915,630.30
  6. Step 6: Final answer
    x = 774,139.68

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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.