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Finding the Fourth Proportional to 415,248.88, 620,597.81 and 303,165.13

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Solution

The fourth proportional to 415,248.88, 620,597.81 and 303,165.13 is: 453,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,248.88 : 620,597.81 = 303,165.13 : x
  2. Step 2: Convert to fraction form
    415,248.88/620,597.81 = 303,165.13/x
  3. Step 3: Cross multiply
    415,248.88x = 620,597.81 × 303,165.13
  4. Step 4: Simplify right side
    415,248.88x = 188,143,615,746.37
  5. Step 5: Solve for x
    x = 188,143,615,746.37/415,248.88
  6. Step 6: Final answer
    x = 453,086.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.