Home / 917,238.20-1,373,135.70-681,625.40

Finding the Fourth Proportional to 917,238.20, 1,373,135.70 and 681,625.40

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Solution

The fourth proportional to 917,238.20, 1,373,135.70 and 681,625.40 is: 1,020,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,238.20 : 1,373,135.70 = 681,625.40 : x
  2. Step 2: Convert to fraction form
    917,238.20/1,373,135.70 = 681,625.40/x
  3. Step 3: Cross multiply
    917,238.20x = 1,373,135.70 × 681,625.40
  4. Step 4: Simplify right side
    917,238.20x = 935,964,170,766.78
  5. Step 5: Solve for x
    x = 935,964,170,766.78/917,238.20
  6. Step 6: Final answer
    x = 1,020,415.60

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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.