Home / 859,055.76-1,288,073.16-326,615.76

Finding the Fourth Proportional to 859,055.76, 1,288,073.16 and 326,615.76

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Solution

The fourth proportional to 859,055.76, 1,288,073.16 and 326,615.76 is: 489,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,055.76 : 1,288,073.16 = 326,615.76 : x
  2. Step 2: Convert to fraction form
    859,055.76/1,288,073.16 = 326,615.76/x
  3. Step 3: Cross multiply
    859,055.76x = 1,288,073.16 × 326,615.76
  4. Step 4: Simplify right side
    859,055.76x = 420,704,994,089.00
  5. Step 5: Solve for x
    x = 420,704,994,089.00/859,055.76
  6. Step 6: Final answer
    x = 489,729.55

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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.