Home / 847,092.42-1,271,143.51-307,390.80

Finding the Fourth Proportional to 847,092.42, 1,271,143.51 and 307,390.80

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Solution

The fourth proportional to 847,092.42, 1,271,143.51 and 307,390.80 is: 461,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,092.42 : 1,271,143.51 = 307,390.80 : x
  2. Step 2: Convert to fraction form
    847,092.42/1,271,143.51 = 307,390.80/x
  3. Step 3: Cross multiply
    847,092.42x = 1,271,143.51 × 307,390.80
  4. Step 4: Simplify right side
    847,092.42x = 390,737,819,685.23
  5. Step 5: Solve for x
    x = 390,737,819,685.23/847,092.42
  6. Step 6: Final answer
    x = 461,269.41

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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.