Home / 540,823.79-810,663.61-203,718.58

Finding the Fourth Proportional to 540,823.79, 810,663.61 and 203,718.58

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Solution

The fourth proportional to 540,823.79, 810,663.61 and 203,718.58 is: 305,362.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,823.79 : 810,663.61 = 203,718.58 : x
  2. Step 2: Convert to fraction form
    540,823.79/810,663.61 = 203,718.58/x
  3. Step 3: Cross multiply
    540,823.79x = 810,663.61 × 203,718.58
  4. Step 4: Simplify right side
    540,823.79x = 165,147,239,486.87
  5. Step 5: Solve for x
    x = 165,147,239,486.87/540,823.79
  6. Step 6: Final answer
    x = 305,362.38

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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.