Home / 2,578,521.40-3,866,421.30-872,078.20

Finding the Fourth Proportional to 2,578,521.40, 3,866,421.30 and 872,078.20

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Solution

The fourth proportional to 2,578,521.40, 3,866,421.30 and 872,078.20 is: 1,307,657.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,521.40 : 3,866,421.30 = 872,078.20 : x
  2. Step 2: Convert to fraction form
    2,578,521.40/3,866,421.30 = 872,078.20/x
  3. Step 3: Cross multiply
    2,578,521.40x = 3,866,421.30 × 872,078.20
  4. Step 4: Simplify right side
    2,578,521.40x = 3,371,821,727,745.66
  5. Step 5: Solve for x
    x = 3,371,821,727,745.66/2,578,521.40
  6. Step 6: Final answer
    x = 1,307,657.07

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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.