Home / 679,686.45-937,982.49-373,743.39

Finding the Fourth Proportional to 679,686.45, 937,982.49 and 373,743.39

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Solution

The fourth proportional to 679,686.45, 937,982.49 and 373,743.39 is: 515,774.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,686.45 : 937,982.49 = 373,743.39 : x
  2. Step 2: Convert to fraction form
    679,686.45/937,982.49 = 373,743.39/x
  3. Step 3: Cross multiply
    679,686.45x = 937,982.49 × 373,743.39
  4. Step 4: Simplify right side
    679,686.45x = 350,564,755,573.24
  5. Step 5: Solve for x
    x = 350,564,755,573.24/679,686.45
  6. Step 6: Final answer
    x = 515,774.23

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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.