Home / 767,721.60-1,151,582.40-341,256.60

Finding the Fourth Proportional to 767,721.60, 1,151,582.40 and 341,256.60

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Solution

The fourth proportional to 767,721.60, 1,151,582.40 and 341,256.60 is: 511,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,721.60 : 1,151,582.40 = 341,256.60 : x
  2. Step 2: Convert to fraction form
    767,721.60/1,151,582.40 = 341,256.60/x
  3. Step 3: Cross multiply
    767,721.60x = 1,151,582.40 × 341,256.60
  4. Step 4: Simplify right side
    767,721.60x = 392,985,094,443.84
  5. Step 5: Solve for x
    x = 392,985,094,443.84/767,721.60
  6. Step 6: Final answer
    x = 511,884.90

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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.