Home / 779,980.75-1,169,823.17-380,219.47

Finding the Fourth Proportional to 779,980.75, 1,169,823.17 and 380,219.47

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Solution

The fourth proportional to 779,980.75, 1,169,823.17 and 380,219.47 is: 570,257.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,980.75 : 1,169,823.17 = 380,219.47 : x
  2. Step 2: Convert to fraction form
    779,980.75/1,169,823.17 = 380,219.47/x
  3. Step 3: Cross multiply
    779,980.75x = 1,169,823.17 × 380,219.47
  4. Step 4: Simplify right side
    779,980.75x = 444,789,543,790.02
  5. Step 5: Solve for x
    x = 444,789,543,790.02/779,980.75
  6. Step 6: Final answer
    x = 570,257.08

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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.