Home / 908,766-1,254,045.90-500,866.50

Finding the Fourth Proportional to 908,766, 1,254,045.90 and 500,866.50

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Solution

The fourth proportional to 908,766, 1,254,045.90 and 500,866.50 is: 691,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,766 : 1,254,045.90 = 500,866.50 : x
  2. Step 2: Convert to fraction form
    908,766/1,254,045.90 = 500,866.50/x
  3. Step 3: Cross multiply
    908,766x = 1,254,045.90 × 500,866.50
  4. Step 4: Simplify right side
    908,766x = 628,109,580,772.35
  5. Step 5: Solve for x
    x = 628,109,580,772.35/908,766
  6. Step 6: Final answer
    x = 691,167.56

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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.