Home / 782,048.40-1,078,670.25-717,725.39

Finding the Fourth Proportional to 782,048.40, 1,078,670.25 and 717,725.39

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Solution

The fourth proportional to 782,048.40, 1,078,670.25 and 717,725.39 is: 989,950.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,048.40 : 1,078,670.25 = 717,725.39 : x
  2. Step 2: Convert to fraction form
    782,048.40/1,078,670.25 = 717,725.39/x
  3. Step 3: Cross multiply
    782,048.40x = 1,078,670.25 × 717,725.39
  4. Step 4: Simplify right side
    782,048.40x = 774,189,025,862.65
  5. Step 5: Solve for x
    x = 774,189,025,862.65/782,048.40
  6. Step 6: Final answer
    x = 989,950.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.