Home / 487,968.65-731,445.52-188,654.81

Finding the Fourth Proportional to 487,968.65, 731,445.52 and 188,654.81

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Solution

The fourth proportional to 487,968.65, 731,445.52 and 188,654.81 is: 282,786.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,968.65 : 731,445.52 = 188,654.81 : x
  2. Step 2: Convert to fraction form
    487,968.65/731,445.52 = 188,654.81/x
  3. Step 3: Cross multiply
    487,968.65x = 731,445.52 × 188,654.81
  4. Step 4: Simplify right side
    487,968.65x = 137,990,715,600.95
  5. Step 5: Solve for x
    x = 137,990,715,600.95/487,968.65
  6. Step 6: Final answer
    x = 282,786.03

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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.