Home / 864,245.70-1,296,368.55-550,095.30

Finding the Fourth Proportional to 864,245.70, 1,296,368.55 and 550,095.30

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Solution

The fourth proportional to 864,245.70, 1,296,368.55 and 550,095.30 is: 825,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,245.70 : 1,296,368.55 = 550,095.30 : x
  2. Step 2: Convert to fraction form
    864,245.70/1,296,368.55 = 550,095.30/x
  3. Step 3: Cross multiply
    864,245.70x = 1,296,368.55 × 550,095.30
  4. Step 4: Simplify right side
    864,245.70x = 713,126,246,422.82
  5. Step 5: Solve for x
    x = 713,126,246,422.82/864,245.70
  6. Step 6: Final answer
    x = 825,142.95

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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.