Home / 770,541.40-1,155,812.10-491,296.60

Finding the Fourth Proportional to 770,541.40, 1,155,812.10 and 491,296.60

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Solution

The fourth proportional to 770,541.40, 1,155,812.10 and 491,296.60 is: 736,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,541.40 : 1,155,812.10 = 491,296.60 : x
  2. Step 2: Convert to fraction form
    770,541.40/1,155,812.10 = 491,296.60/x
  3. Step 3: Cross multiply
    770,541.40x = 1,155,812.10 × 491,296.60
  4. Step 4: Simplify right side
    770,541.40x = 567,846,554,968.86
  5. Step 5: Solve for x
    x = 567,846,554,968.86/770,541.40
  6. Step 6: Final answer
    x = 736,944.90

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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.