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Finding the Fourth Proportional to 566,241.58, 781,380.90 and 311,592.76

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Solution

The fourth proportional to 566,241.58, 781,380.90 and 311,592.76 is: 429,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,241.58 : 781,380.90 = 311,592.76 : x
  2. Step 2: Convert to fraction form
    566,241.58/781,380.90 = 311,592.76/x
  3. Step 3: Cross multiply
    566,241.58x = 781,380.90 × 311,592.76
  4. Step 4: Simplify right side
    566,241.58x = 243,472,631,242.28
  5. Step 5: Solve for x
    x = 243,472,631,242.28/566,241.58
  6. Step 6: Final answer
    x = 429,980.14

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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.