Home / 817,499.52-1,128,170.88-454,947.84

Finding the Fourth Proportional to 817,499.52, 1,128,170.88 and 454,947.84

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Solution

The fourth proportional to 817,499.52, 1,128,170.88 and 454,947.84 is: 627,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,499.52 : 1,128,170.88 = 454,947.84 : x
  2. Step 2: Convert to fraction form
    817,499.52/1,128,170.88 = 454,947.84/x
  3. Step 3: Cross multiply
    817,499.52x = 1,128,170.88 × 454,947.84
  4. Step 4: Simplify right side
    817,499.52x = 513,258,905,006.90
  5. Step 5: Solve for x
    x = 513,258,905,006.90/817,499.52
  6. Step 6: Final answer
    x = 627,840.01

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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.