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Finding the Fourth Proportional to 671,138.36, 926,171.09 and 369,332.36

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Solution

The fourth proportional to 671,138.36, 926,171.09 and 369,332.36 is: 509,678.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,138.36 : 926,171.09 = 369,332.36 : x
  2. Step 2: Convert to fraction form
    671,138.36/926,171.09 = 369,332.36/x
  3. Step 3: Cross multiply
    671,138.36x = 926,171.09 × 369,332.36
  4. Step 4: Simplify right side
    671,138.36x = 342,064,954,433.47
  5. Step 5: Solve for x
    x = 342,064,954,433.47/671,138.36
  6. Step 6: Final answer
    x = 509,678.74

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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.