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Finding the Fourth Proportional to 565,381.35, 780,115.05 and 336,008.79

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Solution

The fourth proportional to 565,381.35, 780,115.05 and 336,008.79 is: 463,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,381.35 : 780,115.05 = 336,008.79 : x
  2. Step 2: Convert to fraction form
    565,381.35/780,115.05 = 336,008.79/x
  3. Step 3: Cross multiply
    565,381.35x = 780,115.05 × 336,008.79
  4. Step 4: Simplify right side
    565,381.35x = 262,125,514,011.29
  5. Step 5: Solve for x
    x = 262,125,514,011.29/565,381.35
  6. Step 6: Final answer
    x = 463,626.04

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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.