Home / 999,570.11-1,379,402.88-540,686.02

Finding the Fourth Proportional to 999,570.11, 1,379,402.88 and 540,686.02

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Solution

The fourth proportional to 999,570.11, 1,379,402.88 and 540,686.02 is: 746,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,570.11 : 1,379,402.88 = 540,686.02 : x
  2. Step 2: Convert to fraction form
    999,570.11/1,379,402.88 = 540,686.02/x
  3. Step 3: Cross multiply
    999,570.11x = 1,379,402.88 × 540,686.02
  4. Step 4: Simplify right side
    999,570.11x = 745,823,853,163.74
  5. Step 5: Solve for x
    x = 745,823,853,163.74/999,570.11
  6. Step 6: Final answer
    x = 746,144.61

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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.