Home / 520,595.10-781,087.05-205,271.82

Finding the Fourth Proportional to 520,595.10, 781,087.05 and 205,271.82

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Solution

The fourth proportional to 520,595.10, 781,087.05 and 205,271.82 is: 307,984.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,595.10 : 781,087.05 = 205,271.82 : x
  2. Step 2: Convert to fraction form
    520,595.10/781,087.05 = 205,271.82/x
  3. Step 3: Cross multiply
    520,595.10x = 781,087.05 × 205,271.82
  4. Step 4: Simplify right side
    520,595.10x = 160,335,160,331.93
  5. Step 5: Solve for x
    x = 160,335,160,331.93/520,595.10
  6. Step 6: Final answer
    x = 307,984.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.