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Finding the Fourth Proportional to 520,242.93, 780,426.86 and 183,213.87

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Solution

The fourth proportional to 520,242.93, 780,426.86 and 183,213.87 is: 274,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,242.93 : 780,426.86 = 183,213.87 : x
  2. Step 2: Convert to fraction form
    520,242.93/780,426.86 = 183,213.87/x
  3. Step 3: Cross multiply
    520,242.93x = 780,426.86 × 183,213.87
  4. Step 4: Simplify right side
    520,242.93x = 142,985,024,356.48
  5. Step 5: Solve for x
    x = 142,985,024,356.48/520,242.93
  6. Step 6: Final answer
    x = 274,842.80

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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.