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Finding the Fourth Proportional to 642,480.58, 886,510.83 and 366,712.53

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Solution

The fourth proportional to 642,480.58, 886,510.83 and 366,712.53 is: 505,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,480.58 : 886,510.83 = 366,712.53 : x
  2. Step 2: Convert to fraction form
    642,480.58/886,510.83 = 366,712.53/x
  3. Step 3: Cross multiply
    642,480.58x = 886,510.83 × 366,712.53
  4. Step 4: Simplify right side
    642,480.58x = 325,094,626,576.35
  5. Step 5: Solve for x
    x = 325,094,626,576.35/642,480.58
  6. Step 6: Final answer
    x = 505,999.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.