Home / 1,509,502.20-2,086,101.78-1,237,140.52

Finding the Fourth Proportional to 1,509,502.20, 2,086,101.78 and 1,237,140.52

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Solution

The fourth proportional to 1,509,502.20, 2,086,101.78 and 1,237,140.52 is: 1,709,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,502.20 : 2,086,101.78 = 1,237,140.52 : x
  2. Step 2: Convert to fraction form
    1,509,502.20/2,086,101.78 = 1,237,140.52/x
  3. Step 3: Cross multiply
    1,509,502.20x = 2,086,101.78 × 1,237,140.52
  4. Step 4: Simplify right side
    1,509,502.20x = 2,580,801,040,882.13
  5. Step 5: Solve for x
    x = 2,580,801,040,882.13/1,509,502.20
  6. Step 6: Final answer
    x = 1,709,703.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.