Home / 876,087.20-1,314,130.80-781,608.80

Finding the Fourth Proportional to 876,087.20, 1,314,130.80 and 781,608.80

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Solution

The fourth proportional to 876,087.20, 1,314,130.80 and 781,608.80 is: 1,172,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,087.20 : 1,314,130.80 = 781,608.80 : x
  2. Step 2: Convert to fraction form
    876,087.20/1,314,130.80 = 781,608.80/x
  3. Step 3: Cross multiply
    876,087.20x = 1,314,130.80 × 781,608.80
  4. Step 4: Simplify right side
    876,087.20x = 1,027,136,197,631.04
  5. Step 5: Solve for x
    x = 1,027,136,197,631.04/876,087.20
  6. Step 6: Final answer
    x = 1,172,413.20

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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.