Home / 3,129,403.68-4,694,837.76-970,315.20

Finding the Fourth Proportional to 3,129,403.68, 4,694,837.76 and 970,315.20

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Solution

The fourth proportional to 3,129,403.68, 4,694,837.76 and 970,315.20 is: 1,455,699.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,403.68 : 4,694,837.76 = 970,315.20 : x
  2. Step 2: Convert to fraction form
    3,129,403.68/4,694,837.76 = 970,315.20/x
  3. Step 3: Cross multiply
    3,129,403.68x = 4,694,837.76 × 970,315.20
  4. Step 4: Simplify right side
    3,129,403.68x = 4,555,472,440,061.95
  5. Step 5: Solve for x
    x = 4,555,472,440,061.95/3,129,403.68
  6. Step 6: Final answer
    x = 1,455,699.84

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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.