Home / 865,620.65-1,298,498.01-289,245.93

Finding the Fourth Proportional to 865,620.65, 1,298,498.01 and 289,245.93

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Solution

The fourth proportional to 865,620.65, 1,298,498.01 and 289,245.93 is: 433,891.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,620.65 : 1,298,498.01 = 289,245.93 : x
  2. Step 2: Convert to fraction form
    865,620.65/1,298,498.01 = 289,245.93/x
  3. Step 3: Cross multiply
    865,620.65x = 1,298,498.01 × 289,245.93
  4. Step 4: Simplify right side
    865,620.65x = 375,585,264,505.60
  5. Step 5: Solve for x
    x = 375,585,264,505.60/865,620.65
  6. Step 6: Final answer
    x = 433,891.29

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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.