Home / 722,477.96-997,052.40-400,188.02

Finding the Fourth Proportional to 722,477.96, 997,052.40 and 400,188.02

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Solution

The fourth proportional to 722,477.96, 997,052.40 and 400,188.02 is: 552,277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,477.96 : 997,052.40 = 400,188.02 : x
  2. Step 2: Convert to fraction form
    722,477.96/997,052.40 = 400,188.02/x
  3. Step 3: Cross multiply
    722,477.96x = 997,052.40 × 400,188.02
  4. Step 4: Simplify right side
    722,477.96x = 399,008,420,806.99
  5. Step 5: Solve for x
    x = 399,008,420,806.99/722,477.96
  6. Step 6: Final answer
    x = 552,277.64

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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.