Home / 782,271.86-1,079,350.14-442,740.11

Finding the Fourth Proportional to 782,271.86, 1,079,350.14 and 442,740.11

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Solution

The fourth proportional to 782,271.86, 1,079,350.14 and 442,740.11 is: 610,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,271.86 : 1,079,350.14 = 442,740.11 : x
  2. Step 2: Convert to fraction form
    782,271.86/1,079,350.14 = 442,740.11/x
  3. Step 3: Cross multiply
    782,271.86x = 1,079,350.14 × 442,740.11
  4. Step 4: Simplify right side
    782,271.86x = 477,871,599,712.12
  5. Step 5: Solve for x
    x = 477,871,599,712.12/782,271.86
  6. Step 6: Final answer
    x = 610,876.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.