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Finding the Fourth Proportional to 613,839.18, 846,903.15 and 345,515.34

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Solution

The fourth proportional to 613,839.18, 846,903.15 and 345,515.34 is: 476,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,839.18 : 846,903.15 = 345,515.34 : x
  2. Step 2: Convert to fraction form
    613,839.18/846,903.15 = 345,515.34/x
  3. Step 3: Cross multiply
    613,839.18x = 846,903.15 × 345,515.34
  4. Step 4: Simplify right side
    613,839.18x = 292,618,029,819.32
  5. Step 5: Solve for x
    x = 292,618,029,819.32/613,839.18
  6. Step 6: Final answer
    x = 476,701.45

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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.