Home / 407,617.17-611,130.50-205,337.89

Finding the Fourth Proportional to 407,617.17, 611,130.50 and 205,337.89

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Solution

The fourth proportional to 407,617.17, 611,130.50 and 205,337.89 is: 307,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,617.17 : 611,130.50 = 205,337.89 : x
  2. Step 2: Convert to fraction form
    407,617.17/611,130.50 = 205,337.89/x
  3. Step 3: Cross multiply
    407,617.17x = 611,130.50 × 205,337.89
  4. Step 4: Simplify right side
    407,617.17x = 125,488,247,384.65
  5. Step 5: Solve for x
    x = 125,488,247,384.65/407,617.17
  6. Step 6: Final answer
    x = 307,858.10

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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.