Home / 566,246.40-781,400.16-311,591.04

Finding the Fourth Proportional to 566,246.40, 781,400.16 and 311,591.04

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Solution

The fourth proportional to 566,246.40, 781,400.16 and 311,591.04 is: 429,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,246.40 : 781,400.16 = 311,591.04 : x
  2. Step 2: Convert to fraction form
    566,246.40/781,400.16 = 311,591.04/x
  3. Step 3: Cross multiply
    566,246.40x = 781,400.16 × 311,591.04
  4. Step 4: Simplify right side
    566,246.40x = 243,477,288,510.57
  5. Step 5: Solve for x
    x = 243,477,288,510.57/566,246.40
  6. Step 6: Final answer
    x = 429,984.70

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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.