Home / 1,018,999.38-1,528,761.51-387,568.74

Finding the Fourth Proportional to 1,018,999.38, 1,528,761.51 and 387,568.74

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Solution

The fourth proportional to 1,018,999.38, 1,528,761.51 and 387,568.74 is: 581,452.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,999.38 : 1,528,761.51 = 387,568.74 : x
  2. Step 2: Convert to fraction form
    1,018,999.38/1,528,761.51 = 387,568.74/x
  3. Step 3: Cross multiply
    1,018,999.38x = 1,528,761.51 × 387,568.74
  4. Step 4: Simplify right side
    1,018,999.38x = 592,500,172,191.20
  5. Step 5: Solve for x
    x = 592,500,172,191.20/1,018,999.38
  6. Step 6: Final answer
    x = 581,452.93

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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.