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Finding the Fourth Proportional to 608,886.40, 913,329.60 and 328,950.40

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Solution

The fourth proportional to 608,886.40, 913,329.60 and 328,950.40 is: 493,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,886.40 : 913,329.60 = 328,950.40 : x
  2. Step 2: Convert to fraction form
    608,886.40/913,329.60 = 328,950.40/x
  3. Step 3: Cross multiply
    608,886.40x = 913,329.60 × 328,950.40
  4. Step 4: Simplify right side
    608,886.40x = 300,440,137,251.84
  5. Step 5: Solve for x
    x = 300,440,137,251.84/608,886.40
  6. Step 6: Final answer
    x = 493,425.60

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Similar ratio
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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.