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Finding the Fourth Proportional to 671,739.84, 926,989.92 and 369,961.92

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Solution

The fourth proportional to 671,739.84, 926,989.92 and 369,961.92 is: 510,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,739.84 : 926,989.92 = 369,961.92 : x
  2. Step 2: Convert to fraction form
    671,739.84/926,989.92 = 369,961.92/x
  3. Step 3: Cross multiply
    671,739.84x = 926,989.92 × 369,961.92
  4. Step 4: Simplify right side
    671,739.84x = 342,950,970,623.85
  5. Step 5: Solve for x
    x = 342,950,970,623.85/671,739.84
  6. Step 6: Final answer
    x = 510,541.36

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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.