Home / 3,213,430.76-4,820,125.34-817,254.68

Finding the Fourth Proportional to 3,213,430.76, 4,820,125.34 and 817,254.68

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Solution

The fourth proportional to 3,213,430.76, 4,820,125.34 and 817,254.68 is: 1,225,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213,430.76 : 4,820,125.34 = 817,254.68 : x
  2. Step 2: Convert to fraction form
    3,213,430.76/4,820,125.34 = 817,254.68/x
  3. Step 3: Cross multiply
    3,213,430.76x = 4,820,125.34 × 817,254.68
  4. Step 4: Simplify right side
    3,213,430.76x = 3,939,269,992,301.59
  5. Step 5: Solve for x
    x = 3,939,269,992,301.59/3,213,430.76
  6. Step 6: Final answer
    x = 1,225,876.73

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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.