Home / 722,904.24-997,647.80-400,607.60

Finding the Fourth Proportional to 722,904.24, 997,647.80 and 400,607.60

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Solution

The fourth proportional to 722,904.24, 997,647.80 and 400,607.60 is: 552,860.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,904.24 : 997,647.80 = 400,607.60 : x
  2. Step 2: Convert to fraction form
    722,904.24/997,647.80 = 400,607.60/x
  3. Step 3: Cross multiply
    722,904.24x = 997,647.80 × 400,607.60
  4. Step 4: Simplify right side
    722,904.24x = 399,665,290,803.28
  5. Step 5: Solve for x
    x = 399,665,290,803.28/722,904.24
  6. Step 6: Final answer
    x = 552,860.63

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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.