Home / 687,906.40-1,032,005.40-208,094.80

Finding the Fourth Proportional to 687,906.40, 1,032,005.40 and 208,094.80

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Solution

The fourth proportional to 687,906.40, 1,032,005.40 and 208,094.80 is: 312,186.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,906.40 : 1,032,005.40 = 208,094.80 : x
  2. Step 2: Convert to fraction form
    687,906.40/1,032,005.40 = 208,094.80/x
  3. Step 3: Cross multiply
    687,906.40x = 1,032,005.40 × 208,094.80
  4. Step 4: Simplify right side
    687,906.40x = 214,754,957,311.92
  5. Step 5: Solve for x
    x = 214,754,957,311.92/687,906.40
  6. Step 6: Final answer
    x = 312,186.31

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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.