Home / 774,951.09-1,069,060.11-667,334.30

Finding the Fourth Proportional to 774,951.09, 1,069,060.11 and 667,334.30

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Solution

The fourth proportional to 774,951.09, 1,069,060.11 and 667,334.30 is: 920,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,951.09 : 1,069,060.11 = 667,334.30 : x
  2. Step 2: Convert to fraction form
    774,951.09/1,069,060.11 = 667,334.30/x
  3. Step 3: Cross multiply
    774,951.09x = 1,069,060.11 × 667,334.30
  4. Step 4: Simplify right side
    774,951.09x = 713,420,480,164.77
  5. Step 5: Solve for x
    x = 713,420,480,164.77/774,951.09
  6. Step 6: Final answer
    x = 920,600.65

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.