Home / 818,572.40-1,228,025.28-345,259.52

Finding the Fourth Proportional to 818,572.40, 1,228,025.28 and 345,259.52

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Solution

The fourth proportional to 818,572.40, 1,228,025.28 and 345,259.52 is: 517,959.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,572.40 : 1,228,025.28 = 345,259.52 : x
  2. Step 2: Convert to fraction form
    818,572.40/1,228,025.28 = 345,259.52/x
  3. Step 3: Cross multiply
    818,572.40x = 1,228,025.28 × 345,259.52
  4. Step 4: Simplify right side
    818,572.40x = 423,987,418,720.67
  5. Step 5: Solve for x
    x = 423,987,418,720.67/818,572.40
  6. Step 6: Final answer
    x = 517,959.58

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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.