Home / 691,638.50-955,248.45-464,890.34

Finding the Fourth Proportional to 691,638.50, 955,248.45 and 464,890.34

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Solution

The fourth proportional to 691,638.50, 955,248.45 and 464,890.34 is: 642,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,638.50 : 955,248.45 = 464,890.34 : x
  2. Step 2: Convert to fraction form
    691,638.50/955,248.45 = 464,890.34/x
  3. Step 3: Cross multiply
    691,638.50x = 955,248.45 × 464,890.34
  4. Step 4: Simplify right side
    691,638.50x = 444,085,776,704.97
  5. Step 5: Solve for x
    x = 444,085,776,704.97/691,638.50
  6. Step 6: Final answer
    x = 642,077.87

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1.5x scale

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.