Home / 772,936.80-1,159,405.20-493,000.80

Finding the Fourth Proportional to 772,936.80, 1,159,405.20 and 493,000.80

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Solution

The fourth proportional to 772,936.80, 1,159,405.20 and 493,000.80 is: 739,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,936.80 : 1,159,405.20 = 493,000.80 : x
  2. Step 2: Convert to fraction form
    772,936.80/1,159,405.20 = 493,000.80/x
  3. Step 3: Cross multiply
    772,936.80x = 1,159,405.20 × 493,000.80
  4. Step 4: Simplify right side
    772,936.80x = 571,587,691,124.16
  5. Step 5: Solve for x
    x = 571,587,691,124.16/772,936.80
  6. Step 6: Final answer
    x = 739,501.20

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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.