Home / 918,407.35-1,267,417.32-504,961.61

Finding the Fourth Proportional to 918,407.35, 1,267,417.32 and 504,961.61

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Solution

The fourth proportional to 918,407.35, 1,267,417.32 and 504,961.61 is: 696,855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,407.35 : 1,267,417.32 = 504,961.61 : x
  2. Step 2: Convert to fraction form
    918,407.35/1,267,417.32 = 504,961.61/x
  3. Step 3: Cross multiply
    918,407.35x = 1,267,417.32 × 504,961.61
  4. Step 4: Simplify right side
    918,407.35x = 639,997,082,218.39
  5. Step 5: Solve for x
    x = 639,997,082,218.39/918,407.35
  6. Step 6: Final answer
    x = 696,855.36

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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.