Home / 722,849.32-997,537.92-400,564.78

Finding the Fourth Proportional to 722,849.32, 997,537.92 and 400,564.78

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Solution

The fourth proportional to 722,849.32, 997,537.92 and 400,564.78 is: 552,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,849.32 : 997,537.92 = 400,564.78 : x
  2. Step 2: Convert to fraction form
    722,849.32/997,537.92 = 400,564.78/x
  3. Step 3: Cross multiply
    722,849.32x = 997,537.92 × 400,564.78
  4. Step 4: Simplify right side
    722,849.32x = 399,578,557,466.46
  5. Step 5: Solve for x
    x = 399,578,557,466.46/722,849.32
  6. Step 6: Final answer
    x = 552,782.64

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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.