Home / 770,220.78-1,062,546.66-498,376.32

Finding the Fourth Proportional to 770,220.78, 1,062,546.66 and 498,376.32

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Solution

The fourth proportional to 770,220.78, 1,062,546.66 and 498,376.32 is: 687,527.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,220.78 : 1,062,546.66 = 498,376.32 : x
  2. Step 2: Convert to fraction form
    770,220.78/1,062,546.66 = 498,376.32/x
  3. Step 3: Cross multiply
    770,220.78x = 1,062,546.66 × 498,376.32
  4. Step 4: Simplify right side
    770,220.78x = 529,548,094,239.09
  5. Step 5: Solve for x
    x = 529,548,094,239.09/770,220.78
  6. Step 6: Final answer
    x = 687,527.66

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.