Home / 545,116.86-817,610.89-145,788.58

Finding the Fourth Proportional to 545,116.86, 817,610.89 and 145,788.58

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Solution

The fourth proportional to 545,116.86, 817,610.89 and 145,788.58 is: 218,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,116.86 : 817,610.89 = 145,788.58 : x
  2. Step 2: Convert to fraction form
    545,116.86/817,610.89 = 145,788.58/x
  3. Step 3: Cross multiply
    545,116.86x = 817,610.89 × 145,788.58
  4. Step 4: Simplify right side
    545,116.86x = 119,198,325,828.64
  5. Step 5: Solve for x
    x = 119,198,325,828.64/545,116.86
  6. Step 6: Final answer
    x = 218,665.64

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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.