Home / 1,262,505.80-1,898,424.30-1,057,219.40

Finding the Fourth Proportional to 1,262,505.80, 1,898,424.30 and 1,057,219.40

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Solution

The fourth proportional to 1,262,505.80, 1,898,424.30 and 1,057,219.40 is: 1,589,736.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,505.80 : 1,898,424.30 = 1,057,219.40 : x
  2. Step 2: Convert to fraction form
    1,262,505.80/1,898,424.30 = 1,057,219.40/x
  3. Step 3: Cross multiply
    1,262,505.80x = 1,898,424.30 × 1,057,219.40
  4. Step 4: Simplify right side
    1,262,505.80x = 2,007,050,999,391.42
  5. Step 5: Solve for x
    x = 2,007,050,999,391.42/1,262,505.80
  6. Step 6: Final answer
    x = 1,589,736.06

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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.