Home / 782,272.61-1,079,351.18-442,740.86

Finding the Fourth Proportional to 782,272.61, 1,079,351.18 and 442,740.86

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Solution

The fourth proportional to 782,272.61, 1,079,351.18 and 442,740.86 is: 610,877.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,272.61 : 1,079,351.18 = 442,740.86 : x
  2. Step 2: Convert to fraction form
    782,272.61/1,079,351.18 = 442,740.86/x
  3. Step 3: Cross multiply
    782,272.61x = 1,079,351.18 × 442,740.86
  4. Step 4: Simplify right side
    782,272.61x = 477,872,867,461.51
  5. Step 5: Solve for x
    x = 477,872,867,461.51/782,272.61
  6. Step 6: Final answer
    x = 610,877.67

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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.