Home / 778,864.20-1,168,101.90-298,987.80

Finding the Fourth Proportional to 778,864.20, 1,168,101.90 and 298,987.80

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Solution

The fourth proportional to 778,864.20, 1,168,101.90 and 298,987.80 is: 448,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,864.20 : 1,168,101.90 = 298,987.80 : x
  2. Step 2: Convert to fraction form
    778,864.20/1,168,101.90 = 298,987.80/x
  3. Step 3: Cross multiply
    778,864.20x = 1,168,101.90 × 298,987.80
  4. Step 4: Simplify right side
    778,864.20x = 349,248,217,256.82
  5. Step 5: Solve for x
    x = 349,248,217,256.82/778,864.20
  6. Step 6: Final answer
    x = 448,407.07

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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.