Home / 1,221,347.40-1,832,021.10-843,433.80

Finding the Fourth Proportional to 1,221,347.40, 1,832,021.10 and 843,433.80

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Solution

The fourth proportional to 1,221,347.40, 1,832,021.10 and 843,433.80 is: 1,265,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,347.40 : 1,832,021.10 = 843,433.80 : x
  2. Step 2: Convert to fraction form
    1,221,347.40/1,832,021.10 = 843,433.80/x
  3. Step 3: Cross multiply
    1,221,347.40x = 1,832,021.10 × 843,433.80
  4. Step 4: Simplify right side
    1,221,347.40x = 1,545,188,518,053.18
  5. Step 5: Solve for x
    x = 1,545,188,518,053.18/1,221,347.40
  6. Step 6: Final answer
    x = 1,265,150.70

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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.