Home / 724,619.70-1,086,929.55-512,043.30

Finding the Fourth Proportional to 724,619.70, 1,086,929.55 and 512,043.30

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Solution

The fourth proportional to 724,619.70, 1,086,929.55 and 512,043.30 is: 768,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,619.70 : 1,086,929.55 = 512,043.30 : x
  2. Step 2: Convert to fraction form
    724,619.70/1,086,929.55 = 512,043.30/x
  3. Step 3: Cross multiply
    724,619.70x = 1,086,929.55 × 512,043.30
  4. Step 4: Simplify right side
    724,619.70x = 556,554,993,649.52
  5. Step 5: Solve for x
    x = 556,554,993,649.52/724,619.70
  6. Step 6: Final answer
    x = 768,064.95

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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.