Home / 844,986.40-1,267,479.60-509,063.20

Finding the Fourth Proportional to 844,986.40, 1,267,479.60 and 509,063.20

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Solution

The fourth proportional to 844,986.40, 1,267,479.60 and 509,063.20 is: 763,594.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    844,986.40 : 1,267,479.60 = 509,063.20 : x
  2. Step 2: Convert to fraction form
    844,986.40/1,267,479.60 = 509,063.20/x
  3. Step 3: Cross multiply
    844,986.40x = 1,267,479.60 × 509,063.20
  4. Step 4: Simplify right side
    844,986.40x = 645,227,221,110.72
  5. Step 5: Solve for x
    x = 645,227,221,110.72/844,986.40
  6. Step 6: Final answer
    x = 763,594.80

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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.