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Finding the Fourth Proportional to 566,158.60, 781,296.06 and 311,508.64

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Solution

The fourth proportional to 566,158.60, 781,296.06 and 311,508.64 is: 429,880.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,158.60 : 781,296.06 = 311,508.64 : x
  2. Step 2: Convert to fraction form
    566,158.60/781,296.06 = 311,508.64/x
  3. Step 3: Cross multiply
    566,158.60x = 781,296.06 × 311,508.64
  4. Step 4: Simplify right side
    566,158.60x = 243,380,473,087.96
  5. Step 5: Solve for x
    x = 243,380,473,087.96/566,158.60
  6. Step 6: Final answer
    x = 429,880.38

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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.