Home / 722,530.24-997,091.60-400,261.20

Finding the Fourth Proportional to 722,530.24, 997,091.60 and 400,261.20

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Solution

The fourth proportional to 722,530.24, 997,091.60 and 400,261.20 is: 552,360.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,530.24 : 997,091.60 = 400,261.20 : x
  2. Step 2: Convert to fraction form
    722,530.24/997,091.60 = 400,261.20/x
  3. Step 3: Cross multiply
    722,530.24x = 997,091.60 × 400,261.20
  4. Step 4: Simplify right side
    722,530.24x = 399,097,080,325.92
  5. Step 5: Solve for x
    x = 399,097,080,325.92/722,530.24
  6. Step 6: Final answer
    x = 552,360.38

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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.