Home / 460,878.45-635,949.88-256,919.51

Finding the Fourth Proportional to 460,878.45, 635,949.88 and 256,919.51

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Solution

The fourth proportional to 460,878.45, 635,949.88 and 256,919.51 is: 354,514.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,878.45 : 635,949.88 = 256,919.51 : x
  2. Step 2: Convert to fraction form
    460,878.45/635,949.88 = 256,919.51/x
  3. Step 3: Cross multiply
    460,878.45x = 635,949.88 × 256,919.51
  4. Step 4: Simplify right side
    460,878.45x = 163,387,931,554.16
  5. Step 5: Solve for x
    x = 163,387,931,554.16/460,878.45
  6. Step 6: Final answer
    x = 354,514.15

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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.