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Finding the Fourth Proportional to 607,357.50, 911,588.76 and 323,286.87

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Solution

The fourth proportional to 607,357.50, 911,588.76 and 323,286.87 is: 485,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,357.50 : 911,588.76 = 323,286.87 : x
  2. Step 2: Convert to fraction form
    607,357.50/911,588.76 = 323,286.87/x
  3. Step 3: Cross multiply
    607,357.50x = 911,588.76 × 323,286.87
  4. Step 4: Simplify right side
    607,357.50x = 294,704,676,947.58
  5. Step 5: Solve for x
    x = 294,704,676,947.58/607,357.50
  6. Step 6: Final answer
    x = 485,224.40

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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.