Home / 728,117.52-1,004,806.86-405,848.04

Finding the Fourth Proportional to 728,117.52, 1,004,806.86 and 405,848.04

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Solution

The fourth proportional to 728,117.52, 1,004,806.86 and 405,848.04 is: 560,072.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,117.52 : 1,004,806.86 = 405,848.04 : x
  2. Step 2: Convert to fraction form
    728,117.52/1,004,806.86 = 405,848.04/x
  3. Step 3: Cross multiply
    728,117.52x = 1,004,806.86 × 405,848.04
  4. Step 4: Simplify right side
    728,117.52x = 407,798,894,709.55
  5. Step 5: Solve for x
    x = 407,798,894,709.55/728,117.52
  6. Step 6: Final answer
    x = 560,072.91

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1.5x scale

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.