Home / 545,541.04-818,311.50-208,615.78

Finding the Fourth Proportional to 545,541.04, 818,311.50 and 208,615.78

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Solution

The fourth proportional to 545,541.04, 818,311.50 and 208,615.78 is: 312,923.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,541.04 : 818,311.50 = 208,615.78 : x
  2. Step 2: Convert to fraction form
    545,541.04/818,311.50 = 208,615.78/x
  3. Step 3: Cross multiply
    545,541.04x = 818,311.50 × 208,615.78
  4. Step 4: Simplify right side
    545,541.04x = 170,712,691,855.47
  5. Step 5: Solve for x
    x = 170,712,691,855.47/545,541.04
  6. Step 6: Final answer
    x = 312,923.65

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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.