Home / 778,346.16-1,074,103.38-438,814.68

Finding the Fourth Proportional to 778,346.16, 1,074,103.38 and 438,814.68

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Solution

The fourth proportional to 778,346.16, 1,074,103.38 and 438,814.68 is: 605,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,346.16 : 1,074,103.38 = 438,814.68 : x
  2. Step 2: Convert to fraction form
    778,346.16/1,074,103.38 = 438,814.68/x
  3. Step 3: Cross multiply
    778,346.16x = 1,074,103.38 × 438,814.68
  4. Step 4: Simplify right side
    778,346.16x = 471,332,330,981.62
  5. Step 5: Solve for x
    x = 471,332,330,981.62/778,346.16
  6. Step 6: Final answer
    x = 605,556.18

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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.