Home / 459,839.22-690,152.49-260,355.66

Finding the Fourth Proportional to 459,839.22, 690,152.49 and 260,355.66

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Solution

The fourth proportional to 459,839.22, 690,152.49 and 260,355.66 is: 390,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,839.22 : 690,152.49 = 260,355.66 : x
  2. Step 2: Convert to fraction form
    459,839.22/690,152.49 = 260,355.66/x
  3. Step 3: Cross multiply
    459,839.22x = 690,152.49 × 260,355.66
  4. Step 4: Simplify right side
    459,839.22x = 179,685,107,034.59
  5. Step 5: Solve for x
    x = 179,685,107,034.59/459,839.22
  6. Step 6: Final answer
    x = 390,756.38

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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.