Home / 890,252.70-1,335,379.05-785,190.30

Finding the Fourth Proportional to 890,252.70, 1,335,379.05 and 785,190.30

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Solution

The fourth proportional to 890,252.70, 1,335,379.05 and 785,190.30 is: 1,177,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,252.70 : 1,335,379.05 = 785,190.30 : x
  2. Step 2: Convert to fraction form
    890,252.70/1,335,379.05 = 785,190.30/x
  3. Step 3: Cross multiply
    890,252.70x = 1,335,379.05 × 785,190.30
  4. Step 4: Simplify right side
    890,252.70x = 1,048,526,676,883.22
  5. Step 5: Solve for x
    x = 1,048,526,676,883.22/890,252.70
  6. Step 6: Final answer
    x = 1,177,785.45

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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.