Home / 756,119.90-1,132,867.65-638,021.90

Finding the Fourth Proportional to 756,119.90, 1,132,867.65 and 638,021.90

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Solution

The fourth proportional to 756,119.90, 1,132,867.65 and 638,021.90 is: 955,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,119.90 : 1,132,867.65 = 638,021.90 : x
  2. Step 2: Convert to fraction form
    756,119.90/1,132,867.65 = 638,021.90/x
  3. Step 3: Cross multiply
    756,119.90x = 1,132,867.65 × 638,021.90
  4. Step 4: Simplify right side
    756,119.90x = 722,794,370,501.54
  5. Step 5: Solve for x
    x = 722,794,370,501.54/756,119.90
  6. Step 6: Final answer
    x = 955,925.60

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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.