Home / 699,047.88-964,676.91-393,124.20

Finding the Fourth Proportional to 699,047.88, 964,676.91 and 393,124.20

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Solution

The fourth proportional to 699,047.88, 964,676.91 and 393,124.20 is: 542,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,047.88 : 964,676.91 = 393,124.20 : x
  2. Step 2: Convert to fraction form
    699,047.88/964,676.91 = 393,124.20/x
  3. Step 3: Cross multiply
    699,047.88x = 964,676.91 × 393,124.20
  4. Step 4: Simplify right side
    699,047.88x = 379,237,838,502.22
  5. Step 5: Solve for x
    x = 379,237,838,502.22/699,047.88
  6. Step 6: Final answer
    x = 542,506.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.