Home / 979,483.32-1,468,673.64-339,487.20

Finding the Fourth Proportional to 979,483.32, 1,468,673.64 and 339,487.20

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Solution

The fourth proportional to 979,483.32, 1,468,673.64 and 339,487.20 is: 509,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,483.32 : 1,468,673.64 = 339,487.20 : x
  2. Step 2: Convert to fraction form
    979,483.32/1,468,673.64 = 339,487.20/x
  3. Step 3: Cross multiply
    979,483.32x = 1,468,673.64 × 339,487.20
  4. Step 4: Simplify right side
    979,483.32x = 498,595,901,757.41
  5. Step 5: Solve for x
    x = 498,595,901,757.41/979,483.32
  6. Step 6: Final answer
    x = 509,039.71

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Double scale
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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.