Home / 860,525.28-1,290,952.08-328,001.76

Finding the Fourth Proportional to 860,525.28, 1,290,952.08 and 328,001.76

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Solution

The fourth proportional to 860,525.28, 1,290,952.08 and 328,001.76 is: 492,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,525.28 : 1,290,952.08 = 328,001.76 : x
  2. Step 2: Convert to fraction form
    860,525.28/1,290,952.08 = 328,001.76/x
  3. Step 3: Cross multiply
    860,525.28x = 1,290,952.08 × 328,001.76
  4. Step 4: Simplify right side
    860,525.28x = 423,434,554,315.66
  5. Step 5: Solve for x
    x = 423,434,554,315.66/860,525.28
  6. Step 6: Final answer
    x = 492,065.21

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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.