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Finding the Fourth Proportional to 543,404.18, 749,922 and 301,690.10

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Solution

The fourth proportional to 543,404.18, 749,922 and 301,690.10 is: 416,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,404.18 : 749,922 = 301,690.10 : x
  2. Step 2: Convert to fraction form
    543,404.18/749,922 = 301,690.10/x
  3. Step 3: Cross multiply
    543,404.18x = 749,922 × 301,690.10
  4. Step 4: Simplify right side
    543,404.18x = 226,244,043,172.20
  5. Step 5: Solve for x
    x = 226,244,043,172.20/543,404.18
  6. Step 6: Final answer
    x = 416,345.79

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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.