Home / 1,543,449.12-2,315,334-421,518

Finding the Fourth Proportional to 1,543,449.12, 2,315,334 and 421,518

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Solution

The fourth proportional to 1,543,449.12, 2,315,334 and 421,518 is: 632,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,449.12 : 2,315,334 = 421,518 : x
  2. Step 2: Convert to fraction form
    1,543,449.12/2,315,334 = 421,518/x
  3. Step 3: Cross multiply
    1,543,449.12x = 2,315,334 × 421,518
  4. Step 4: Simplify right side
    1,543,449.12x = 975,954,957,012
  5. Step 5: Solve for x
    x = 975,954,957,012/1,543,449.12
  6. Step 6: Final answer
    x = 632,320.78

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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.