Home / 545,117.42-817,611.73-145,789.14

Finding the Fourth Proportional to 545,117.42, 817,611.73 and 145,789.14

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Solution

The fourth proportional to 545,117.42, 817,611.73 and 145,789.14 is: 218,666.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,117.42 : 817,611.73 = 145,789.14 : x
  2. Step 2: Convert to fraction form
    545,117.42/817,611.73 = 145,789.14/x
  3. Step 3: Cross multiply
    545,117.42x = 817,611.73 × 145,789.14
  4. Step 4: Simplify right side
    545,117.42x = 119,198,910,970.61
  5. Step 5: Solve for x
    x = 119,198,910,970.61/545,117.42
  6. Step 6: Final answer
    x = 218,666.49

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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.