Home / 778,891.40-1,168,337.10-358,987.40

Finding the Fourth Proportional to 778,891.40, 1,168,337.10 and 358,987.40

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Solution

The fourth proportional to 778,891.40, 1,168,337.10 and 358,987.40 is: 538,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,891.40 : 1,168,337.10 = 358,987.40 : x
  2. Step 2: Convert to fraction form
    778,891.40/1,168,337.10 = 358,987.40/x
  3. Step 3: Cross multiply
    778,891.40x = 1,168,337.10 × 358,987.40
  4. Step 4: Simplify right side
    778,891.40x = 419,418,297,852.54
  5. Step 5: Solve for x
    x = 419,418,297,852.54/778,891.40
  6. Step 6: Final answer
    x = 538,481.10

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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.