Home / 827,109.30-1,240,372.35-378,045.30

Finding the Fourth Proportional to 827,109.30, 1,240,372.35 and 378,045.30

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Solution

The fourth proportional to 827,109.30, 1,240,372.35 and 378,045.30 is: 566,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,109.30 : 1,240,372.35 = 378,045.30 : x
  2. Step 2: Convert to fraction form
    827,109.30/1,240,372.35 = 378,045.30/x
  3. Step 3: Cross multiply
    827,109.30x = 1,240,372.35 × 378,045.30
  4. Step 4: Simplify right side
    827,109.30x = 468,916,937,167.46
  5. Step 5: Solve for x
    x = 468,916,937,167.46/827,109.30
  6. Step 6: Final answer
    x = 566,934.67

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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.