Home / 640,972.20-884,514.96-350,579.10

Finding the Fourth Proportional to 640,972.20, 884,514.96 and 350,579.10

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Solution

The fourth proportional to 640,972.20, 884,514.96 and 350,579.10 is: 483,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,972.20 : 884,514.96 = 350,579.10 : x
  2. Step 2: Convert to fraction form
    640,972.20/884,514.96 = 350,579.10/x
  3. Step 3: Cross multiply
    640,972.20x = 884,514.96 × 350,579.10
  4. Step 4: Simplify right side
    640,972.20x = 310,092,458,613.34
  5. Step 5: Solve for x
    x = 310,092,458,613.34/640,972.20
  6. Step 6: Final answer
    x = 483,784.57

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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.