Home / 772,116.80-1,158,117.60-322,721.60

Finding the Fourth Proportional to 772,116.80, 1,158,117.60 and 322,721.60

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Solution

The fourth proportional to 772,116.80, 1,158,117.60 and 322,721.60 is: 484,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,116.80 : 1,158,117.60 = 322,721.60 : x
  2. Step 2: Convert to fraction form
    772,116.80/1,158,117.60 = 322,721.60/x
  3. Step 3: Cross multiply
    772,116.80x = 1,158,117.60 × 322,721.60
  4. Step 4: Simplify right side
    772,116.80x = 373,749,564,860.16
  5. Step 5: Solve for x
    x = 373,749,564,860.16/772,116.80
  6. Step 6: Final answer
    x = 484,058.32

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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.