Home / 778,496.36-1,074,325.16-438,964.68

Finding the Fourth Proportional to 778,496.36, 1,074,325.16 and 438,964.68

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Solution

The fourth proportional to 778,496.36, 1,074,325.16 and 438,964.68 is: 605,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,496.36 : 1,074,325.16 = 438,964.68 : x
  2. Step 2: Convert to fraction form
    778,496.36/1,074,325.16 = 438,964.68/x
  3. Step 3: Cross multiply
    778,496.36x = 1,074,325.16 × 438,964.68
  4. Step 4: Simplify right side
    778,496.36x = 471,590,800,075.35
  5. Step 5: Solve for x
    x = 471,590,800,075.35/778,496.36
  6. Step 6: Final answer
    x = 605,771.36

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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.