Home / 638,056.38-880,486.02-351,530.22

Finding the Fourth Proportional to 638,056.38, 880,486.02 and 351,530.22

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Solution

The fourth proportional to 638,056.38, 880,486.02 and 351,530.22 is: 485,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,056.38 : 880,486.02 = 351,530.22 : x
  2. Step 2: Convert to fraction form
    638,056.38/880,486.02 = 351,530.22/x
  3. Step 3: Cross multiply
    638,056.38x = 880,486.02 × 351,530.22
  4. Step 4: Simplify right side
    638,056.38x = 309,517,444,317.52
  5. Step 5: Solve for x
    x = 309,517,444,317.52/638,056.38
  6. Step 6: Final answer
    x = 485,094.19

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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.