Home / 767,867.80-1,151,801.70-368,440.60

Finding the Fourth Proportional to 767,867.80, 1,151,801.70 and 368,440.60

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Solution

The fourth proportional to 767,867.80, 1,151,801.70 and 368,440.60 is: 552,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,867.80 : 1,151,801.70 = 368,440.60 : x
  2. Step 2: Convert to fraction form
    767,867.80/1,151,801.70 = 368,440.60/x
  3. Step 3: Cross multiply
    767,867.80x = 1,151,801.70 × 368,440.60
  4. Step 4: Simplify right side
    767,867.80x = 424,370,509,429.02
  5. Step 5: Solve for x
    x = 424,370,509,429.02/767,867.80
  6. Step 6: Final answer
    x = 552,660.90

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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.