Home / 642,816.54-964,405.35-238,002.66

Finding the Fourth Proportional to 642,816.54, 964,405.35 and 238,002.66

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Solution

The fourth proportional to 642,816.54, 964,405.35 and 238,002.66 is: 357,070.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,816.54 : 964,405.35 = 238,002.66 : x
  2. Step 2: Convert to fraction form
    642,816.54/964,405.35 = 238,002.66/x
  3. Step 3: Cross multiply
    642,816.54x = 964,405.35 × 238,002.66
  4. Step 4: Simplify right side
    642,816.54x = 229,531,038,618.23
  5. Step 5: Solve for x
    x = 229,531,038,618.23/642,816.54
  6. Step 6: Final answer
    x = 357,070.83

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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.