Home / 439,621.40-659,432.10-371,192.60

Finding the Fourth Proportional to 439,621.40, 659,432.10 and 371,192.60

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Solution

The fourth proportional to 439,621.40, 659,432.10 and 371,192.60 is: 556,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,621.40 : 659,432.10 = 371,192.60 : x
  2. Step 2: Convert to fraction form
    439,621.40/659,432.10 = 371,192.60/x
  3. Step 3: Cross multiply
    439,621.40x = 659,432.10 × 371,192.60
  4. Step 4: Simplify right side
    439,621.40x = 244,776,315,722.46
  5. Step 5: Solve for x
    x = 244,776,315,722.46/439,621.40
  6. Step 6: Final answer
    x = 556,788.90

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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.