Home / 425,784.32-637,953.50-256,949.88

Finding the Fourth Proportional to 425,784.32, 637,953.50 and 256,949.88

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Solution

The fourth proportional to 425,784.32, 637,953.50 and 256,949.88 is: 384,988.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,784.32 : 637,953.50 = 256,949.88 : x
  2. Step 2: Convert to fraction form
    425,784.32/637,953.50 = 256,949.88/x
  3. Step 3: Cross multiply
    425,784.32x = 637,953.50 × 256,949.88
  4. Step 4: Simplify right side
    425,784.32x = 163,922,077,109.12
  5. Step 5: Solve for x
    x = 163,922,077,109.12/425,784.32
  6. Step 6: Final answer
    x = 384,988.52

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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.