Home / 1,424,493.60-2,136,740.40-427,221.60

Finding the Fourth Proportional to 1,424,493.60, 2,136,740.40 and 427,221.60

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Solution

The fourth proportional to 1,424,493.60, 2,136,740.40 and 427,221.60 is: 640,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,493.60 : 2,136,740.40 = 427,221.60 : x
  2. Step 2: Convert to fraction form
    1,424,493.60/2,136,740.40 = 427,221.60/x
  3. Step 3: Cross multiply
    1,424,493.60x = 2,136,740.40 × 427,221.60
  4. Step 4: Simplify right side
    1,424,493.60x = 912,861,652,472.64
  5. Step 5: Solve for x
    x = 912,861,652,472.64/1,424,493.60
  6. Step 6: Final answer
    x = 640,832.40

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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.