Home / 778,480.10-1,167,720.15-778,480.10

Finding the Fourth Proportional to 778,480.10, 1,167,720.15 and 778,480.10

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Solution

The fourth proportional to 778,480.10, 1,167,720.15 and 778,480.10 is: 1,167,720.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,480.10 : 1,167,720.15 = 778,480.10 : x
  2. Step 2: Convert to fraction form
    778,480.10/1,167,720.15 = 778,480.10/x
  3. Step 3: Cross multiply
    778,480.10x = 1,167,720.15 × 778,480.10
  4. Step 4: Simplify right side
    778,480.10x = 909,046,899,144.02
  5. Step 5: Solve for x
    x = 909,046,899,144.02/778,480.10
  6. Step 6: Final answer
    x = 1,167,720.15

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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.