Home / 685,318.86-1,023,813.24-443,462.45

Finding the Fourth Proportional to 685,318.86, 1,023,813.24 and 443,462.45

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Solution

The fourth proportional to 685,318.86, 1,023,813.24 and 443,462.45 is: 662,498.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,318.86 : 1,023,813.24 = 443,462.45 : x
  2. Step 2: Convert to fraction form
    685,318.86/1,023,813.24 = 443,462.45/x
  3. Step 3: Cross multiply
    685,318.86x = 1,023,813.24 × 443,462.45
  4. Step 4: Simplify right side
    685,318.86x = 454,022,730,312.37
  5. Step 5: Solve for x
    x = 454,022,730,312.37/685,318.86
  6. Step 6: Final answer
    x = 662,498.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.