Home / 545,145.42-817,660.61-145,826.50

Finding the Fourth Proportional to 545,145.42, 817,660.61 and 145,826.50

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Solution

The fourth proportional to 545,145.42, 817,660.61 and 145,826.50 is: 218,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,145.42 : 817,660.61 = 145,826.50 : x
  2. Step 2: Convert to fraction form
    545,145.42/817,660.61 = 145,826.50/x
  3. Step 3: Cross multiply
    545,145.42x = 817,660.61 × 145,826.50
  4. Step 4: Simplify right side
    545,145.42x = 119,236,584,944.17
  5. Step 5: Solve for x
    x = 119,236,584,944.17/545,145.42
  6. Step 6: Final answer
    x = 218,724.36

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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.