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Finding the Fourth Proportional to 722,846.06, 997,533.42 and 400,561.53

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Solution

The fourth proportional to 722,846.06, 997,533.42 and 400,561.53 is: 552,778.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,846.06 : 997,533.42 = 400,561.53 : x
  2. Step 2: Convert to fraction form
    722,846.06/997,533.42 = 400,561.53/x
  3. Step 3: Cross multiply
    722,846.06x = 997,533.42 × 400,561.53
  4. Step 4: Simplify right side
    722,846.06x = 399,573,512,941.33
  5. Step 5: Solve for x
    x = 399,573,512,941.33/722,846.06
  6. Step 6: Final answer
    x = 552,778.16

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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.