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Finding the Fourth Proportional to 486,878.54, 672,079.89 and 435,801.15

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Solution

The fourth proportional to 486,878.54, 672,079.89 and 435,801.15 is: 601,573.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,878.54 : 672,079.89 = 435,801.15 : x
  2. Step 2: Convert to fraction form
    486,878.54/672,079.89 = 435,801.15/x
  3. Step 3: Cross multiply
    486,878.54x = 672,079.89 × 435,801.15
  4. Step 4: Simplify right side
    486,878.54x = 292,893,188,136.75
  5. Step 5: Solve for x
    x = 292,893,188,136.75/486,878.54
  6. Step 6: Final answer
    x = 601,573.43

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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.