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Finding the Fourth Proportional to 520,312.87, 779,848.05 and 267,714.37

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Solution

The fourth proportional to 520,312.87, 779,848.05 and 267,714.37 is: 401,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,312.87 : 779,848.05 = 267,714.37 : x
  2. Step 2: Convert to fraction form
    520,312.87/779,848.05 = 267,714.37/x
  3. Step 3: Cross multiply
    520,312.87x = 779,848.05 × 267,714.37
  4. Step 4: Simplify right side
    520,312.87x = 208,776,526,993.57
  5. Step 5: Solve for x
    x = 208,776,526,993.57/520,312.87
  6. Step 6: Final answer
    x = 401,251.90

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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.