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Finding the Fourth Proportional to 671,138.73, 926,171.60 and 369,332.73

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Solution

The fourth proportional to 671,138.73, 926,171.60 and 369,332.73 is: 509,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,138.73 : 926,171.60 = 369,332.73 : x
  2. Step 2: Convert to fraction form
    671,138.73/926,171.60 = 369,332.73/x
  3. Step 3: Cross multiply
    671,138.73x = 926,171.60 × 369,332.73
  4. Step 4: Simplify right side
    671,138.73x = 342,065,483,629.80
  5. Step 5: Solve for x
    x = 342,065,483,629.80/671,138.73
  6. Step 6: Final answer
    x = 509,679.25

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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.