Home / 722,845.89-997,533.18-400,561.34

Finding the Fourth Proportional to 722,845.89, 997,533.18 and 400,561.34

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Solution

The fourth proportional to 722,845.89, 997,533.18 and 400,561.34 is: 552,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,845.89 : 997,533.18 = 400,561.34 : x
  2. Step 2: Convert to fraction form
    722,845.89/997,533.18 = 400,561.34/x
  3. Step 3: Cross multiply
    722,845.89x = 997,533.18 × 400,561.34
  4. Step 4: Simplify right side
    722,845.89x = 399,573,222,287.60
  5. Step 5: Solve for x
    x = 399,573,222,287.60/722,845.89
  6. Step 6: Final answer
    x = 552,777.89

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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.