Home / 1,207,417.20-1,811,125.80-1,188,754.80

Finding the Fourth Proportional to 1,207,417.20, 1,811,125.80 and 1,188,754.80

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Solution

The fourth proportional to 1,207,417.20, 1,811,125.80 and 1,188,754.80 is: 1,783,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,417.20 : 1,811,125.80 = 1,188,754.80 : x
  2. Step 2: Convert to fraction form
    1,207,417.20/1,811,125.80 = 1,188,754.80/x
  3. Step 3: Cross multiply
    1,207,417.20x = 1,811,125.80 × 1,188,754.80
  4. Step 4: Simplify right side
    1,207,417.20x = 2,152,984,488,153.84
  5. Step 5: Solve for x
    x = 2,152,984,488,153.84/1,207,417.20
  6. Step 6: Final answer
    x = 1,783,132.20

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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.