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Finding the Fourth Proportional to 877,062, 1,315,801 and 286,086

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Solution

The fourth proportional to 877,062, 1,315,801 and 286,086 is: 429,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,062 : 1,315,801 = 286,086 : x
  2. Step 2: Convert to fraction form
    877,062/1,315,801 = 286,086/x
  3. Step 3: Cross multiply
    877,062x = 1,315,801 × 286,086
  4. Step 4: Simplify right side
    877,062x = 376,432,244,886
  5. Step 5: Solve for x
    x = 376,432,244,886/877,062
  6. Step 6: Final answer
    x = 429,196.85

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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.