Home / 1,500,083.91-2,070,121.25-811,755.69

Finding the Fourth Proportional to 1,500,083.91, 2,070,121.25 and 811,755.69

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Solution

The fourth proportional to 1,500,083.91, 2,070,121.25 and 811,755.69 is: 1,120,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,083.91 : 2,070,121.25 = 811,755.69 : x
  2. Step 2: Convert to fraction form
    1,500,083.91/2,070,121.25 = 811,755.69/x
  3. Step 3: Cross multiply
    1,500,083.91x = 2,070,121.25 × 811,755.69
  4. Step 4: Simplify right side
    1,500,083.91x = 1,680,432,699,618.63
  5. Step 5: Solve for x
    x = 1,680,432,699,618.63/1,500,083.91
  6. Step 6: Final answer
    x = 1,120,225.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.