Home / 638,274.60-880,822.02-351,781.80

Finding the Fourth Proportional to 638,274.60, 880,822.02 and 351,781.80

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Solution

The fourth proportional to 638,274.60, 880,822.02 and 351,781.80 is: 485,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,274.60 : 880,822.02 = 351,781.80 : x
  2. Step 2: Convert to fraction form
    638,274.60/880,822.02 = 351,781.80/x
  3. Step 3: Cross multiply
    638,274.60x = 880,822.02 × 351,781.80
  4. Step 4: Simplify right side
    638,274.60x = 309,857,155,675.24
  5. Step 5: Solve for x
    x = 309,857,155,675.24/638,274.60
  6. Step 6: Final answer
    x = 485,460.58

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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.