Home / 545,180.12-817,937.60-279,127.45

Finding the Fourth Proportional to 545,180.12, 817,937.60 and 279,127.45

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Solution

The fourth proportional to 545,180.12, 817,937.60 and 279,127.45 is: 418,776.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,180.12 : 817,937.60 = 279,127.45 : x
  2. Step 2: Convert to fraction form
    545,180.12/817,937.60 = 279,127.45/x
  3. Step 3: Cross multiply
    545,180.12x = 817,937.60 × 279,127.45
  4. Step 4: Simplify right side
    545,180.12x = 228,308,836,173.91
  5. Step 5: Solve for x
    x = 228,308,836,173.91/545,180.12
  6. Step 6: Final answer
    x = 418,776.89

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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.