Home / 778,548.40-1,167,822.60-445,850.80

Finding the Fourth Proportional to 778,548.40, 1,167,822.60 and 445,850.80

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Solution

The fourth proportional to 778,548.40, 1,167,822.60 and 445,850.80 is: 668,776.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,548.40 : 1,167,822.60 = 445,850.80 : x
  2. Step 2: Convert to fraction form
    778,548.40/1,167,822.60 = 445,850.80/x
  3. Step 3: Cross multiply
    778,548.40x = 1,167,822.60 × 445,850.80
  4. Step 4: Simplify right side
    778,548.40x = 520,674,640,468.08
  5. Step 5: Solve for x
    x = 520,674,640,468.08/778,548.40
  6. Step 6: Final answer
    x = 668,776.20

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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.