Home / 778,095.36-1,166,705.28-245,517.12

Finding the Fourth Proportional to 778,095.36, 1,166,705.28 and 245,517.12

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Solution

The fourth proportional to 778,095.36, 1,166,705.28 and 245,517.12 is: 368,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,095.36 : 1,166,705.28 = 245,517.12 : x
  2. Step 2: Convert to fraction form
    778,095.36/1,166,705.28 = 245,517.12/x
  3. Step 3: Cross multiply
    778,095.36x = 1,166,705.28 × 245,517.12
  4. Step 4: Simplify right side
    778,095.36x = 286,446,120,234.39
  5. Step 5: Solve for x
    x = 286,446,120,234.39/778,095.36
  6. Step 6: Final answer
    x = 368,137.55

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Double scale
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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.