Home / 746,011.42-1,119,128.28-266,201.80

Finding the Fourth Proportional to 746,011.42, 1,119,128.28 and 266,201.80

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Solution

The fourth proportional to 746,011.42, 1,119,128.28 and 266,201.80 is: 399,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,011.42 : 1,119,128.28 = 266,201.80 : x
  2. Step 2: Convert to fraction form
    746,011.42/1,119,128.28 = 266,201.80/x
  3. Step 3: Cross multiply
    746,011.42x = 1,119,128.28 × 266,201.80
  4. Step 4: Simplify right side
    746,011.42x = 297,913,962,566.90
  5. Step 5: Solve for x
    x = 297,913,962,566.90/746,011.42
  6. Step 6: Final answer
    x = 399,342.36

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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.