Home / 1,083,859.20-1,626,710.40-485,740.80

Finding the Fourth Proportional to 1,083,859.20, 1,626,710.40 and 485,740.80

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Solution

The fourth proportional to 1,083,859.20, 1,626,710.40 and 485,740.80 is: 729,024.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083,859.20 : 1,626,710.40 = 485,740.80 : x
  2. Step 2: Convert to fraction form
    1,083,859.20/1,626,710.40 = 485,740.80/x
  3. Step 3: Cross multiply
    1,083,859.20x = 1,626,710.40 × 485,740.80
  4. Step 4: Simplify right side
    1,083,859.20x = 790,159,611,064.32
  5. Step 5: Solve for x
    x = 790,159,611,064.32/1,083,859.20
  6. Step 6: Final answer
    x = 729,024.22

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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.