Home / 415,948.84-623,922.78-135,465.64

Finding the Fourth Proportional to 415,948.84, 623,922.78 and 135,465.64

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Solution

The fourth proportional to 415,948.84, 623,922.78 and 135,465.64 is: 203,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,948.84 : 623,922.78 = 135,465.64 : x
  2. Step 2: Convert to fraction form
    415,948.84/623,922.78 = 135,465.64/x
  3. Step 3: Cross multiply
    415,948.84x = 623,922.78 × 135,465.64
  4. Step 4: Simplify right side
    415,948.84x = 84,520,098,703.28
  5. Step 5: Solve for x
    x = 84,520,098,703.28/415,948.84
  6. Step 6: Final answer
    x = 203,198.30

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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.