Home / 400,764.11-553,097.77-255,574.64

Finding the Fourth Proportional to 400,764.11, 553,097.77 and 255,574.64

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Solution

The fourth proportional to 400,764.11, 553,097.77 and 255,574.64 is: 352,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,764.11 : 553,097.77 = 255,574.64 : x
  2. Step 2: Convert to fraction form
    400,764.11/553,097.77 = 255,574.64/x
  3. Step 3: Cross multiply
    400,764.11x = 553,097.77 × 255,574.64
  4. Step 4: Simplify right side
    400,764.11x = 141,357,764,196.36
  5. Step 5: Solve for x
    x = 141,357,764,196.36/400,764.11
  6. Step 6: Final answer
    x = 352,720.62

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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.