Home / 999,632.29-1,378,931.90-612,635.20

Finding the Fourth Proportional to 999,632.29, 1,378,931.90 and 612,635.20

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Solution

The fourth proportional to 999,632.29, 1,378,931.90 and 612,635.20 is: 845,092.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,632.29 : 1,378,931.90 = 612,635.20 : x
  2. Step 2: Convert to fraction form
    999,632.29/1,378,931.90 = 612,635.20/x
  3. Step 3: Cross multiply
    999,632.29x = 1,378,931.90 × 612,635.20
  4. Step 4: Simplify right side
    999,632.29x = 844,782,217,278.45
  5. Step 5: Solve for x
    x = 844,782,217,278.45/999,632.29
  6. Step 6: Final answer
    x = 845,092.97

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1.5x scale

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.