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Finding the Fourth Proportional to 613,421.20, 846,500.52 and 345,097.36

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Solution

The fourth proportional to 613,421.20, 846,500.52 and 345,097.36 is: 476,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,421.20 : 846,500.52 = 345,097.36 : x
  2. Step 2: Convert to fraction form
    613,421.20/846,500.52 = 345,097.36/x
  3. Step 3: Cross multiply
    613,421.20x = 846,500.52 × 345,097.36
  4. Step 4: Simplify right side
    613,421.20x = 292,125,094,690.63
  5. Step 5: Solve for x
    x = 292,125,094,690.63/613,421.20
  6. Step 6: Final answer
    x = 476,222.69

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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.