Home / 415,947.81-623,965.46-135,486.93

Finding the Fourth Proportional to 415,947.81, 623,965.46 and 135,486.93

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Solution

The fourth proportional to 415,947.81, 623,965.46 and 135,486.93 is: 203,244.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,947.81 : 623,965.46 = 135,486.93 : x
  2. Step 2: Convert to fraction form
    415,947.81/623,965.46 = 135,486.93/x
  3. Step 3: Cross multiply
    415,947.81x = 623,965.46 × 135,486.93
  4. Step 4: Simplify right side
    415,947.81x = 84,539,164,601.44
  5. Step 5: Solve for x
    x = 84,539,164,601.44/415,947.81
  6. Step 6: Final answer
    x = 203,244.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.