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Finding the Fourth Proportional to 518,874.12, 716,045.40 and 292,519.62

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Solution

The fourth proportional to 518,874.12, 716,045.40 and 292,519.62 is: 403,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,874.12 : 716,045.40 = 292,519.62 : x
  2. Step 2: Convert to fraction form
    518,874.12/716,045.40 = 292,519.62/x
  3. Step 3: Cross multiply
    518,874.12x = 716,045.40 × 292,519.62
  4. Step 4: Simplify right side
    518,874.12x = 209,457,328,310.75
  5. Step 5: Solve for x
    x = 209,457,328,310.75/518,874.12
  6. Step 6: Final answer
    x = 403,676.58

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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.