Home / 2,578,588.40-3,866,521.80-872,145.20

Finding the Fourth Proportional to 2,578,588.40, 3,866,521.80 and 872,145.20

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Solution

The fourth proportional to 2,578,588.40, 3,866,521.80 and 872,145.20 is: 1,307,757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,588.40 : 3,866,521.80 = 872,145.20 : x
  2. Step 2: Convert to fraction form
    2,578,588.40/3,866,521.80 = 872,145.20/x
  3. Step 3: Cross multiply
    2,578,588.40x = 3,866,521.80 × 872,145.20
  4. Step 4: Simplify right side
    2,578,588.40x = 3,372,168,428,565.36
  5. Step 5: Solve for x
    x = 3,372,168,428,565.36/2,578,588.40
  6. Step 6: Final answer
    x = 1,307,757.54

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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.