Home / 763,079.01-1,143,122.08-442,557.54

Finding the Fourth Proportional to 763,079.01, 1,143,122.08 and 442,557.54

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Solution

The fourth proportional to 763,079.01, 1,143,122.08 and 442,557.54 is: 662,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,079.01 : 1,143,122.08 = 442,557.54 : x
  2. Step 2: Convert to fraction form
    763,079.01/1,143,122.08 = 442,557.54/x
  3. Step 3: Cross multiply
    763,079.01x = 1,143,122.08 × 442,557.54
  4. Step 4: Simplify right side
    763,079.01x = 505,897,298,401.53
  5. Step 5: Solve for x
    x = 505,897,298,401.53/763,079.01
  6. Step 6: Final answer
    x = 662,968.43

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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.