Home / 1,282,386.74-1,914,109.28-1,131,101.42

Finding the Fourth Proportional to 1,282,386.74, 1,914,109.28 and 1,131,101.42

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Solution

The fourth proportional to 1,282,386.74, 1,914,109.28 and 1,131,101.42 is: 1,688,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,386.74 : 1,914,109.28 = 1,131,101.42 : x
  2. Step 2: Convert to fraction form
    1,282,386.74/1,914,109.28 = 1,131,101.42/x
  3. Step 3: Cross multiply
    1,282,386.74x = 1,914,109.28 × 1,131,101.42
  4. Step 4: Simplify right side
    1,282,386.74x = 2,165,051,713,658.75
  5. Step 5: Solve for x
    x = 2,165,051,713,658.75/1,282,386.74
  6. Step 6: Final answer
    x = 1,688,298.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.