Home / 813,470.62-1,122,587.52-445,947.11

Finding the Fourth Proportional to 813,470.62, 1,122,587.52 and 445,947.11

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Solution

The fourth proportional to 813,470.62, 1,122,587.52 and 445,947.11 is: 615,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,470.62 : 1,122,587.52 = 445,947.11 : x
  2. Step 2: Convert to fraction form
    813,470.62/1,122,587.52 = 445,947.11/x
  3. Step 3: Cross multiply
    813,470.62x = 1,122,587.52 × 445,947.11
  4. Step 4: Simplify right side
    813,470.62x = 500,614,660,266.07
  5. Step 5: Solve for x
    x = 500,614,660,266.07/813,470.62
  6. Step 6: Final answer
    x = 615,405.95

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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.