Home / 880,381.38-1,216,065.95-728,034.94

Finding the Fourth Proportional to 880,381.38, 1,216,065.95 and 728,034.94

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Solution

The fourth proportional to 880,381.38, 1,216,065.95 and 728,034.94 is: 1,005,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,381.38 : 1,216,065.95 = 728,034.94 : x
  2. Step 2: Convert to fraction form
    880,381.38/1,216,065.95 = 728,034.94/x
  3. Step 3: Cross multiply
    880,381.38x = 1,216,065.95 × 728,034.94
  4. Step 4: Simplify right side
    880,381.38x = 885,338,500,944.29
  5. Step 5: Solve for x
    x = 885,338,500,944.29/880,381.38
  6. Step 6: Final answer
    x = 1,005,630.65

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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.