Home / 566,325.81-781,529.18-311,677.20

Finding the Fourth Proportional to 566,325.81, 781,529.18 and 311,677.20

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Solution

The fourth proportional to 566,325.81, 781,529.18 and 311,677.20 is: 430,114.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,325.81 : 781,529.18 = 311,677.20 : x
  2. Step 2: Convert to fraction form
    566,325.81/781,529.18 = 311,677.20/x
  3. Step 3: Cross multiply
    566,325.81x = 781,529.18 × 311,677.20
  4. Step 4: Simplify right side
    566,325.81x = 243,584,824,982.31
  5. Step 5: Solve for x
    x = 243,584,824,982.31/566,325.81
  6. Step 6: Final answer
    x = 430,114.29

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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.