Home / 638,350.02-880,922.82-351,874.89

Finding the Fourth Proportional to 638,350.02, 880,922.82 and 351,874.89

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Solution

The fourth proportional to 638,350.02, 880,922.82 and 351,874.89 is: 485,587.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,350.02 : 880,922.82 = 351,874.89 : x
  2. Step 2: Convert to fraction form
    638,350.02/880,922.82 = 351,874.89/x
  3. Step 3: Cross multiply
    638,350.02x = 880,922.82 × 351,874.89
  4. Step 4: Simplify right side
    638,350.02x = 309,974,620,385.99
  5. Step 5: Solve for x
    x = 309,974,620,385.99/638,350.02
  6. Step 6: Final answer
    x = 485,587.23

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1.5x scale

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.