Home / 778,496.59-1,074,325.44-438,964.84

Finding the Fourth Proportional to 778,496.59, 1,074,325.44 and 438,964.84

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Solution

The fourth proportional to 778,496.59, 1,074,325.44 and 438,964.84 is: 605,771.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,496.59 : 1,074,325.44 = 438,964.84 : x
  2. Step 2: Convert to fraction form
    778,496.59/1,074,325.44 = 438,964.84/x
  3. Step 3: Cross multiply
    778,496.59x = 1,074,325.44 × 438,964.84
  4. Step 4: Simplify right side
    778,496.59x = 471,591,094,877.53
  5. Step 5: Solve for x
    x = 471,591,094,877.53/778,496.59
  6. Step 6: Final answer
    x = 605,771.56

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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.