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Finding the Fourth Proportional to 545,783.54, 817,770.23 and 331,904.48

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Solution

The fourth proportional to 545,783.54, 817,770.23 and 331,904.48 is: 497,306.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,783.54 : 817,770.23 = 331,904.48 : x
  2. Step 2: Convert to fraction form
    545,783.54/817,770.23 = 331,904.48/x
  3. Step 3: Cross multiply
    545,783.54x = 817,770.23 × 331,904.48
  4. Step 4: Simplify right side
    545,783.54x = 271,421,601,288.11
  5. Step 5: Solve for x
    x = 271,421,601,288.11/545,783.54
  6. Step 6: Final answer
    x = 497,306.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.