Home / 1,587,005.17-2,380,189.47-777,040.61

Finding the Fourth Proportional to 1,587,005.17, 2,380,189.47 and 777,040.61

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Solution

The fourth proportional to 1,587,005.17, 2,380,189.47 and 777,040.61 is: 1,165,405.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,005.17 : 2,380,189.47 = 777,040.61 : x
  2. Step 2: Convert to fraction form
    1,587,005.17/2,380,189.47 = 777,040.61/x
  3. Step 3: Cross multiply
    1,587,005.17x = 2,380,189.47 × 777,040.61
  4. Step 4: Simplify right side
    1,587,005.17x = 1,849,503,877,684.38
  5. Step 5: Solve for x
    x = 1,849,503,877,684.38/1,587,005.17
  6. Step 6: Final answer
    x = 1,165,405.07

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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.