Home / 779,215.80-1,168,823.70-646,246.20

Finding the Fourth Proportional to 779,215.80, 1,168,823.70 and 646,246.20

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Solution

The fourth proportional to 779,215.80, 1,168,823.70 and 646,246.20 is: 969,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,215.80 : 1,168,823.70 = 646,246.20 : x
  2. Step 2: Convert to fraction form
    779,215.80/1,168,823.70 = 646,246.20/x
  3. Step 3: Cross multiply
    779,215.80x = 1,168,823.70 × 646,246.20
  4. Step 4: Simplify right side
    779,215.80x = 755,347,874,594.94
  5. Step 5: Solve for x
    x = 755,347,874,594.94/779,215.80
  6. Step 6: Final answer
    x = 969,369.30

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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.