Home / 1,851,859.20-2,778,710.40-729,964.80

Finding the Fourth Proportional to 1,851,859.20, 2,778,710.40 and 729,964.80

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Solution

The fourth proportional to 1,851,859.20, 2,778,710.40 and 729,964.80 is: 1,095,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851,859.20 : 2,778,710.40 = 729,964.80 : x
  2. Step 2: Convert to fraction form
    1,851,859.20/2,778,710.40 = 729,964.80/x
  3. Step 3: Cross multiply
    1,851,859.20x = 2,778,710.40 × 729,964.80
  4. Step 4: Simplify right side
    1,851,859.20x = 2,028,360,781,393.92
  5. Step 5: Solve for x
    x = 2,028,360,781,393.92/1,851,859.20
  6. Step 6: Final answer
    x = 1,095,310.48

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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.