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Finding the Fourth Proportional to 460,396.92, 690,595.38 and 434,407.80

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Solution

The fourth proportional to 460,396.92, 690,595.38 and 434,407.80 is: 651,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,396.92 : 690,595.38 = 434,407.80 : x
  2. Step 2: Convert to fraction form
    460,396.92/690,595.38 = 434,407.80/x
  3. Step 3: Cross multiply
    460,396.92x = 690,595.38 × 434,407.80
  4. Step 4: Simplify right side
    460,396.92x = 300,000,019,715.96
  5. Step 5: Solve for x
    x = 300,000,019,715.96/460,396.92
  6. Step 6: Final answer
    x = 651,611.70

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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.