Home / 566,271.77-781,455.17-311,622.96

Finding the Fourth Proportional to 566,271.77, 781,455.17 and 311,622.96

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Solution

The fourth proportional to 566,271.77, 781,455.17 and 311,622.96 is: 430,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,271.77 : 781,455.17 = 311,622.96 : x
  2. Step 2: Convert to fraction form
    566,271.77/781,455.17 = 311,622.96/x
  3. Step 3: Cross multiply
    566,271.77x = 781,455.17 × 311,622.96
  4. Step 4: Simplify right side
    566,271.77x = 243,519,371,031.30
  5. Step 5: Solve for x
    x = 243,519,371,031.30/566,271.77
  6. Step 6: Final answer
    x = 430,039.75

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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.