Home / 693,100.61-1,040,023.11-288,572.08

Finding the Fourth Proportional to 693,100.61, 1,040,023.11 and 288,572.08

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Solution

The fourth proportional to 693,100.61, 1,040,023.11 and 288,572.08 is: 433,013.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,100.61 : 1,040,023.11 = 288,572.08 : x
  2. Step 2: Convert to fraction form
    693,100.61/1,040,023.11 = 288,572.08/x
  3. Step 3: Cross multiply
    693,100.61x = 1,040,023.11 × 288,572.08
  4. Step 4: Simplify right side
    693,100.61x = 300,121,632,980.90
  5. Step 5: Solve for x
    x = 300,121,632,980.90/693,100.61
  6. Step 6: Final answer
    x = 433,013.08

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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.