Home / 1,687,669.52-2,328,975.40-913,299.76

Finding the Fourth Proportional to 1,687,669.52, 2,328,975.40 and 913,299.76

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Solution

The fourth proportional to 1,687,669.52, 2,328,975.40 and 913,299.76 is: 1,260,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,669.52 : 2,328,975.40 = 913,299.76 : x
  2. Step 2: Convert to fraction form
    1,687,669.52/2,328,975.40 = 913,299.76/x
  3. Step 3: Cross multiply
    1,687,669.52x = 2,328,975.40 × 913,299.76
  4. Step 4: Simplify right side
    1,687,669.52x = 2,127,052,673,865.90
  5. Step 5: Solve for x
    x = 2,127,052,673,865.90/1,687,669.52
  6. Step 6: Final answer
    x = 1,260,349.05

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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.