Home / 1,331,148.67-1,997,621.48-521,432.67

Finding the Fourth Proportional to 1,331,148.67, 1,997,621.48 and 521,432.67

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Solution

The fourth proportional to 1,331,148.67, 1,997,621.48 and 521,432.67 is: 782,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,148.67 : 1,997,621.48 = 521,432.67 : x
  2. Step 2: Convert to fraction form
    1,331,148.67/1,997,621.48 = 521,432.67/x
  3. Step 3: Cross multiply
    1,331,148.67x = 1,997,621.48 × 521,432.67
  4. Step 4: Simplify right side
    1,331,148.67x = 1,041,625,101,965.75
  5. Step 5: Solve for x
    x = 1,041,625,101,965.75/1,331,148.67
  6. Step 6: Final answer
    x = 782,500.95

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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.