Home / 818,272.40-1,228,675.80-445,024.40

Finding the Fourth Proportional to 818,272.40, 1,228,675.80 and 445,024.40

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Solution

The fourth proportional to 818,272.40, 1,228,675.80 and 445,024.40 is: 668,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,272.40 : 1,228,675.80 = 445,024.40 : x
  2. Step 2: Convert to fraction form
    818,272.40/1,228,675.80 = 445,024.40/x
  3. Step 3: Cross multiply
    818,272.40x = 1,228,675.80 × 445,024.40
  4. Step 4: Simplify right side
    818,272.40x = 546,790,710,689.52
  5. Step 5: Solve for x
    x = 546,790,710,689.52/818,272.40
  6. Step 6: Final answer
    x = 668,225.78

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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.