Home / 688,487.65-1,032,375.03-309,081.73

Finding the Fourth Proportional to 688,487.65, 1,032,375.03 and 309,081.73

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Solution

The fourth proportional to 688,487.65, 1,032,375.03 and 309,081.73 is: 463,462.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,487.65 : 1,032,375.03 = 309,081.73 : x
  2. Step 2: Convert to fraction form
    688,487.65/1,032,375.03 = 309,081.73/x
  3. Step 3: Cross multiply
    688,487.65x = 1,032,375.03 × 309,081.73
  4. Step 4: Simplify right side
    688,487.65x = 319,088,260,281.20
  5. Step 5: Solve for x
    x = 319,088,260,281.20/688,487.65
  6. Step 6: Final answer
    x = 463,462.58

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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.