Home / 482,768.18-724,157.59-145,811.70

Finding the Fourth Proportional to 482,768.18, 724,157.59 and 145,811.70

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Solution

The fourth proportional to 482,768.18, 724,157.59 and 145,811.70 is: 218,719.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,768.18 : 724,157.59 = 145,811.70 : x
  2. Step 2: Convert to fraction form
    482,768.18/724,157.59 = 145,811.70/x
  3. Step 3: Cross multiply
    482,768.18x = 724,157.59 × 145,811.70
  4. Step 4: Simplify right side
    482,768.18x = 105,590,649,265.80
  5. Step 5: Solve for x
    x = 105,590,649,265.80/482,768.18
  6. Step 6: Final answer
    x = 218,719.16

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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.