Home / 1,755,138.30-2,632,707.45-690,215.10

Finding the Fourth Proportional to 1,755,138.30, 2,632,707.45 and 690,215.10

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Solution

The fourth proportional to 1,755,138.30, 2,632,707.45 and 690,215.10 is: 1,035,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,138.30 : 2,632,707.45 = 690,215.10 : x
  2. Step 2: Convert to fraction form
    1,755,138.30/2,632,707.45 = 690,215.10/x
  3. Step 3: Cross multiply
    1,755,138.30x = 2,632,707.45 × 690,215.10
  4. Step 4: Simplify right side
    1,755,138.30x = 1,817,134,435,872.50
  5. Step 5: Solve for x
    x = 1,817,134,435,872.50/1,755,138.30
  6. Step 6: Final answer
    x = 1,035,322.65

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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.