Home / 738,136.20-1,104,579.90-512,437.80

Finding the Fourth Proportional to 738,136.20, 1,104,579.90 and 512,437.80

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Solution

The fourth proportional to 738,136.20, 1,104,579.90 and 512,437.80 is: 766,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,136.20 : 1,104,579.90 = 512,437.80 : x
  2. Step 2: Convert to fraction form
    738,136.20/1,104,579.90 = 512,437.80/x
  3. Step 3: Cross multiply
    738,136.20x = 1,104,579.90 × 512,437.80
  4. Step 4: Simplify right side
    738,136.20x = 566,028,493,880.22
  5. Step 5: Solve for x
    x = 566,028,493,880.22/738,136.20
  6. Step 6: Final answer
    x = 766,834.76

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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.