Home / 745,517.76-1,118,311.20-213,114.48

Finding the Fourth Proportional to 745,517.76, 1,118,311.20 and 213,114.48

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Solution

The fourth proportional to 745,517.76, 1,118,311.20 and 213,114.48 is: 319,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,517.76 : 1,118,311.20 = 213,114.48 : x
  2. Step 2: Convert to fraction form
    745,517.76/1,118,311.20 = 213,114.48/x
  3. Step 3: Cross multiply
    745,517.76x = 1,118,311.20 × 213,114.48
  4. Step 4: Simplify right side
    745,517.76x = 238,328,309,866.18
  5. Step 5: Solve for x
    x = 238,328,309,866.18/745,517.76
  6. Step 6: Final answer
    x = 319,681.60

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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.