Home / 425,777.39-637,943.10-256,942.95

Finding the Fourth Proportional to 425,777.39, 637,943.10 and 256,942.95

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Solution

The fourth proportional to 425,777.39, 637,943.10 and 256,942.95 is: 384,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,777.39 : 637,943.10 = 256,942.95 : x
  2. Step 2: Convert to fraction form
    425,777.39/637,943.10 = 256,942.95/x
  3. Step 3: Cross multiply
    425,777.39x = 637,943.10 × 256,942.95
  4. Step 4: Simplify right side
    425,777.39x = 163,914,979,653.86
  5. Step 5: Solve for x
    x = 163,914,979,653.86/425,777.39
  6. Step 6: Final answer
    x = 384,978.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.