Home / 759,081.34-1,138,821.39-272,812.56

Finding the Fourth Proportional to 759,081.34, 1,138,821.39 and 272,812.56

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Solution

The fourth proportional to 759,081.34, 1,138,821.39 and 272,812.56 is: 409,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,081.34 : 1,138,821.39 = 272,812.56 : x
  2. Step 2: Convert to fraction form
    759,081.34/1,138,821.39 = 272,812.56/x
  3. Step 3: Cross multiply
    759,081.34x = 1,138,821.39 × 272,812.56
  4. Step 4: Simplify right side
    759,081.34x = 310,684,778,788.66
  5. Step 5: Solve for x
    x = 310,684,778,788.66/759,081.34
  6. Step 6: Final answer
    x = 409,290.50

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Double scale
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1.5x scale

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.