Home / 1,210,105.80-1,812,534.30-1,000,153.80

Finding the Fourth Proportional to 1,210,105.80, 1,812,534.30 and 1,000,153.80

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Solution

The fourth proportional to 1,210,105.80, 1,812,534.30 and 1,000,153.80 is: 1,498,061.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,105.80 : 1,812,534.30 = 1,000,153.80 : x
  2. Step 2: Convert to fraction form
    1,210,105.80/1,812,534.30 = 1,000,153.80/x
  3. Step 3: Cross multiply
    1,210,105.80x = 1,812,534.30 × 1,000,153.80
  4. Step 4: Simplify right side
    1,210,105.80x = 1,812,813,067,775.34
  5. Step 5: Solve for x
    x = 1,812,813,067,775.34/1,210,105.80
  6. Step 6: Final answer
    x = 1,498,061.63

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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.