Home / 749,576.70-1,034,412.62-405,412.97

Finding the Fourth Proportional to 749,576.70, 1,034,412.62 and 405,412.97

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Solution

The fourth proportional to 749,576.70, 1,034,412.62 and 405,412.97 is: 559,468.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,576.70 : 1,034,412.62 = 405,412.97 : x
  2. Step 2: Convert to fraction form
    749,576.70/1,034,412.62 = 405,412.97/x
  3. Step 3: Cross multiply
    749,576.70x = 1,034,412.62 × 405,412.97
  4. Step 4: Simplify right side
    749,576.70x = 419,364,285,280.55
  5. Step 5: Solve for x
    x = 419,364,285,280.55/749,576.70
  6. Step 6: Final answer
    x = 559,468.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.