Home / 827,641.28-1,142,278.08-773,612.16

Finding the Fourth Proportional to 827,641.28, 1,142,278.08 and 773,612.16

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Solution

The fourth proportional to 827,641.28, 1,142,278.08 and 773,612.16 is: 1,067,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,641.28 : 1,142,278.08 = 773,612.16 : x
  2. Step 2: Convert to fraction form
    827,641.28/1,142,278.08 = 773,612.16/x
  3. Step 3: Cross multiply
    827,641.28x = 1,142,278.08 × 773,612.16
  4. Step 4: Simplify right side
    827,641.28x = 883,680,212,789.45
  5. Step 5: Solve for x
    x = 883,680,212,789.45/827,641.28
  6. Step 6: Final answer
    x = 1,067,709.20

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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.