Home / 637,975.78-880,406.10-351,495.88

Finding the Fourth Proportional to 637,975.78, 880,406.10 and 351,495.88

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Solution

The fourth proportional to 637,975.78, 880,406.10 and 351,495.88 is: 485,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,975.78 : 880,406.10 = 351,495.88 : x
  2. Step 2: Convert to fraction form
    637,975.78/880,406.10 = 351,495.88/x
  3. Step 3: Cross multiply
    637,975.78x = 880,406.10 × 351,495.88
  4. Step 4: Simplify right side
    637,975.78x = 309,459,116,876.87
  5. Step 5: Solve for x
    x = 309,459,116,876.87/637,975.78
  6. Step 6: Final answer
    x = 485,064.05

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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.