Home / 778,376.76-1,074,118.23-438,823.14

Finding the Fourth Proportional to 778,376.76, 1,074,118.23 and 438,823.14

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Solution

The fourth proportional to 778,376.76, 1,074,118.23 and 438,823.14 is: 605,552.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,376.76 : 1,074,118.23 = 438,823.14 : x
  2. Step 2: Convert to fraction form
    778,376.76/1,074,118.23 = 438,823.14/x
  3. Step 3: Cross multiply
    778,376.76x = 1,074,118.23 × 438,823.14
  4. Step 4: Simplify right side
    778,376.76x = 471,347,934,419.84
  5. Step 5: Solve for x
    x = 471,347,934,419.84/778,376.76
  6. Step 6: Final answer
    x = 605,552.42

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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.