Home / 1,782,130.20-2,673,195.30-520,085.40

Finding the Fourth Proportional to 1,782,130.20, 2,673,195.30 and 520,085.40

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Solution

The fourth proportional to 1,782,130.20, 2,673,195.30 and 520,085.40 is: 780,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782,130.20 : 2,673,195.30 = 520,085.40 : x
  2. Step 2: Convert to fraction form
    1,782,130.20/2,673,195.30 = 520,085.40/x
  3. Step 3: Cross multiply
    1,782,130.20x = 2,673,195.30 × 520,085.40
  4. Step 4: Simplify right side
    1,782,130.20x = 1,390,289,846,878.62
  5. Step 5: Solve for x
    x = 1,390,289,846,878.62/1,782,130.20
  6. Step 6: Final answer
    x = 780,128.10

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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.