Home / 915,671.25-1,373,703.72-308,519.91

Finding the Fourth Proportional to 915,671.25, 1,373,703.72 and 308,519.91

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Solution

The fourth proportional to 915,671.25, 1,373,703.72 and 308,519.91 is: 462,846.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,671.25 : 1,373,703.72 = 308,519.91 : x
  2. Step 2: Convert to fraction form
    915,671.25/1,373,703.72 = 308,519.91/x
  3. Step 3: Cross multiply
    915,671.25x = 1,373,703.72 × 308,519.91
  4. Step 4: Simplify right side
    915,671.25x = 423,814,948,061.07
  5. Step 5: Solve for x
    x = 423,814,948,061.07/915,671.25
  6. Step 6: Final answer
    x = 462,846.19

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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.