Home / 756,065.70-1,134,098.55-378,152.10

Finding the Fourth Proportional to 756,065.70, 1,134,098.55 and 378,152.10

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Solution

The fourth proportional to 756,065.70, 1,134,098.55 and 378,152.10 is: 567,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,065.70 : 1,134,098.55 = 378,152.10 : x
  2. Step 2: Convert to fraction form
    756,065.70/1,134,098.55 = 378,152.10/x
  3. Step 3: Cross multiply
    756,065.70x = 1,134,098.55 × 378,152.10
  4. Step 4: Simplify right side
    756,065.70x = 428,861,748,289.46
  5. Step 5: Solve for x
    x = 428,861,748,289.46/756,065.70
  6. Step 6: Final answer
    x = 567,228.15

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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.