Home / 1,240,315.20-1,860,035.40-441,622.80

Finding the Fourth Proportional to 1,240,315.20, 1,860,035.40 and 441,622.80

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Solution

The fourth proportional to 1,240,315.20, 1,860,035.40 and 441,622.80 is: 662,278.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,315.20 : 1,860,035.40 = 441,622.80 : x
  2. Step 2: Convert to fraction form
    1,240,315.20/1,860,035.40 = 441,622.80/x
  3. Step 3: Cross multiply
    1,240,315.20x = 1,860,035.40 × 441,622.80
  4. Step 4: Simplify right side
    1,240,315.20x = 821,434,041,447.12
  5. Step 5: Solve for x
    x = 821,434,041,447.12/1,240,315.20
  6. Step 6: Final answer
    x = 662,278.46

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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.