Home / 544,218.90-815,647.95-278,085.30

Finding the Fourth Proportional to 544,218.90, 815,647.95 and 278,085.30

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Solution

The fourth proportional to 544,218.90, 815,647.95 and 278,085.30 is: 416,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,218.90 : 815,647.95 = 278,085.30 : x
  2. Step 2: Convert to fraction form
    544,218.90/815,647.95 = 278,085.30/x
  3. Step 3: Cross multiply
    544,218.90x = 815,647.95 × 278,085.30
  4. Step 4: Simplify right side
    544,218.90x = 226,819,704,870.14
  5. Step 5: Solve for x
    x = 226,819,704,870.14/544,218.90
  6. Step 6: Final answer
    x = 416,780.28

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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.