Home / 989,929.48-1,365,396.84-908,520.04

Finding the Fourth Proportional to 989,929.48, 1,365,396.84 and 908,520.04

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Solution

The fourth proportional to 989,929.48, 1,365,396.84 and 908,520.04 is: 1,253,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,929.48 : 1,365,396.84 = 908,520.04 : x
  2. Step 2: Convert to fraction form
    989,929.48/1,365,396.84 = 908,520.04/x
  3. Step 3: Cross multiply
    989,929.48x = 1,365,396.84 × 908,520.04
  4. Step 4: Simplify right side
    989,929.48x = 1,240,490,391,692.67
  5. Step 5: Solve for x
    x = 1,240,490,391,692.67/989,929.48
  6. Step 6: Final answer
    x = 1,253,109.86

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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.