Home / 401,455.08-553,551.30-328,626.36

Finding the Fourth Proportional to 401,455.08, 553,551.30 and 328,626.36

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Solution

The fourth proportional to 401,455.08, 553,551.30 and 328,626.36 is: 453,130.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,455.08 : 553,551.30 = 328,626.36 : x
  2. Step 2: Convert to fraction form
    401,455.08/553,551.30 = 328,626.36/x
  3. Step 3: Cross multiply
    401,455.08x = 553,551.30 × 328,626.36
  4. Step 4: Simplify right side
    401,455.08x = 181,911,548,792.27
  5. Step 5: Solve for x
    x = 181,911,548,792.27/401,455.08
  6. Step 6: Final answer
    x = 453,130.52

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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.