Home / 758,555.07-1,138,281.49-279,119.54

Finding the Fourth Proportional to 758,555.07, 1,138,281.49 and 279,119.54

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Solution

The fourth proportional to 758,555.07, 1,138,281.49 and 279,119.54 is: 418,844.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,555.07 : 1,138,281.49 = 279,119.54 : x
  2. Step 2: Convert to fraction form
    758,555.07/1,138,281.49 = 279,119.54/x
  3. Step 3: Cross multiply
    758,555.07x = 1,138,281.49 × 279,119.54
  4. Step 4: Simplify right side
    758,555.07x = 317,716,605,879.32
  5. Step 5: Solve for x
    x = 317,716,605,879.32/758,555.07
  6. Step 6: Final answer
    x = 418,844.48

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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.