Home / 1,138,609.12-1,571,224.08-629,298.40

Finding the Fourth Proportional to 1,138,609.12, 1,571,224.08 and 629,298.40

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Solution

The fourth proportional to 1,138,609.12, 1,571,224.08 and 629,298.40 is: 868,400.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,609.12 : 1,571,224.08 = 629,298.40 : x
  2. Step 2: Convert to fraction form
    1,138,609.12/1,571,224.08 = 629,298.40/x
  3. Step 3: Cross multiply
    1,138,609.12x = 1,571,224.08 × 629,298.40
  4. Step 4: Simplify right side
    1,138,609.12x = 988,768,799,585.47
  5. Step 5: Solve for x
    x = 988,768,799,585.47/1,138,609.12
  6. Step 6: Final answer
    x = 868,400.56

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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.