Home / 776,967.36-1,165,451.04-278,681.28

Finding the Fourth Proportional to 776,967.36, 1,165,451.04 and 278,681.28

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Solution

The fourth proportional to 776,967.36, 1,165,451.04 and 278,681.28 is: 418,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,967.36 : 1,165,451.04 = 278,681.28 : x
  2. Step 2: Convert to fraction form
    776,967.36/1,165,451.04 = 278,681.28/x
  3. Step 3: Cross multiply
    776,967.36x = 1,165,451.04 × 278,681.28
  4. Step 4: Simplify right side
    776,967.36x = 324,789,387,604.53
  5. Step 5: Solve for x
    x = 324,789,387,604.53/776,967.36
  6. Step 6: Final answer
    x = 418,021.92

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.