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Finding the Fourth Proportional to 426,087.44, 587,918.72 and 256,332.48

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Solution

The fourth proportional to 426,087.44, 587,918.72 and 256,332.48 is: 353,689.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,087.44 : 587,918.72 = 256,332.48 : x
  2. Step 2: Convert to fraction form
    426,087.44/587,918.72 = 256,332.48/x
  3. Step 3: Cross multiply
    426,087.44x = 587,918.72 × 256,332.48
  4. Step 4: Simplify right side
    426,087.44x = 150,702,663,536.03
  5. Step 5: Solve for x
    x = 150,702,663,536.03/426,087.44
  6. Step 6: Final answer
    x = 353,689.52

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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.