Home / 400,815.51-552,859.29-257,756.55

Finding the Fourth Proportional to 400,815.51, 552,859.29 and 257,756.55

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Solution

The fourth proportional to 400,815.51, 552,859.29 and 257,756.55 is: 355,532.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,815.51 : 552,859.29 = 257,756.55 : x
  2. Step 2: Convert to fraction form
    400,815.51/552,859.29 = 257,756.55/x
  3. Step 3: Cross multiply
    400,815.51x = 552,859.29 × 257,756.55
  4. Step 4: Simplify right side
    400,815.51x = 142,503,103,225.85
  5. Step 5: Solve for x
    x = 142,503,103,225.85/400,815.51
  6. Step 6: Final answer
    x = 355,532.91

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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.