Home / 395,981.60-545,925.97-314,579.95

Finding the Fourth Proportional to 395,981.60, 545,925.97 and 314,579.95

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Solution

The fourth proportional to 395,981.60, 545,925.97 and 314,579.95 is: 433,700.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,981.60 : 545,925.97 = 314,579.95 : x
  2. Step 2: Convert to fraction form
    395,981.60/545,925.97 = 314,579.95/x
  3. Step 3: Cross multiply
    395,981.60x = 545,925.97 × 314,579.95
  4. Step 4: Simplify right side
    395,981.60x = 171,737,364,346.30
  5. Step 5: Solve for x
    x = 171,737,364,346.30/395,981.60
  6. Step 6: Final answer
    x = 433,700.36

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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.