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Finding the Fourth Proportional to 520,677.04, 780,309 and 236,012.08

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Solution

The fourth proportional to 520,677.04, 780,309 and 236,012.08 is: 353,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,677.04 : 780,309 = 236,012.08 : x
  2. Step 2: Convert to fraction form
    520,677.04/780,309 = 236,012.08/x
  3. Step 3: Cross multiply
    520,677.04x = 780,309 × 236,012.08
  4. Step 4: Simplify right side
    520,677.04x = 184,162,350,132.72
  5. Step 5: Solve for x
    x = 184,162,350,132.72/520,677.04
  6. Step 6: Final answer
    x = 353,697.85

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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.