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Finding the Fourth Proportional to 565,487.42, 780,248.79 and 336,120.93

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Solution

The fourth proportional to 565,487.42, 780,248.79 and 336,120.93 is: 463,773.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,487.42 : 780,248.79 = 336,120.93 : x
  2. Step 2: Convert to fraction form
    565,487.42/780,248.79 = 336,120.93/x
  3. Step 3: Cross multiply
    565,487.42x = 780,248.79 × 336,120.93
  4. Step 4: Simplify right side
    565,487.42x = 262,257,948,926.18
  5. Step 5: Solve for x
    x = 262,257,948,926.18/565,487.42
  6. Step 6: Final answer
    x = 463,773.27

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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.