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Finding the Fourth Proportional to 518,841.62, 715,970.59 and 301,033.42

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Solution

The fourth proportional to 518,841.62, 715,970.59 and 301,033.42 is: 415,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,841.62 : 715,970.59 = 301,033.42 : x
  2. Step 2: Convert to fraction form
    518,841.62/715,970.59 = 301,033.42/x
  3. Step 3: Cross multiply
    518,841.62x = 715,970.59 × 301,033.42
  4. Step 4: Simplify right side
    518,841.62x = 215,531,076,491.59
  5. Step 5: Solve for x
    x = 215,531,076,491.59/518,841.62
  6. Step 6: Final answer
    x = 415,408.23

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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.