Home / 402,823.86-603,719.01-340,379.34

Finding the Fourth Proportional to 402,823.86, 603,719.01 and 340,379.34

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Solution

The fourth proportional to 402,823.86, 603,719.01 and 340,379.34 is: 510,132.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,823.86 : 603,719.01 = 340,379.34 : x
  2. Step 2: Convert to fraction form
    402,823.86/603,719.01 = 340,379.34/x
  3. Step 3: Cross multiply
    402,823.86x = 603,719.01 × 340,379.34
  4. Step 4: Simplify right side
    402,823.86x = 205,493,478,169.25
  5. Step 5: Solve for x
    x = 205,493,478,169.25/402,823.86
  6. Step 6: Final answer
    x = 510,132.34

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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.