Home / 778,723.38-1,074,636.25-434,555.69

Finding the Fourth Proportional to 778,723.38, 1,074,636.25 and 434,555.69

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Solution

The fourth proportional to 778,723.38, 1,074,636.25 and 434,555.69 is: 599,685.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,723.38 : 1,074,636.25 = 434,555.69 : x
  2. Step 2: Convert to fraction form
    778,723.38/1,074,636.25 = 434,555.69/x
  3. Step 3: Cross multiply
    778,723.38x = 1,074,636.25 × 434,555.69
  4. Step 4: Simplify right side
    778,723.38x = 466,989,296,317.66
  5. Step 5: Solve for x
    x = 466,989,296,317.66/778,723.38
  6. Step 6: Final answer
    x = 599,685.73

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Double scale
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1.5x scale

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.