Home / 749,765.78-1,034,673.68-405,600.90

Finding the Fourth Proportional to 749,765.78, 1,034,673.68 and 405,600.90

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Solution

The fourth proportional to 749,765.78, 1,034,673.68 and 405,600.90 is: 559,727.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,765.78 : 1,034,673.68 = 405,600.90 : x
  2. Step 2: Convert to fraction form
    749,765.78/1,034,673.68 = 405,600.90/x
  3. Step 3: Cross multiply
    749,765.78x = 1,034,673.68 × 405,600.90
  4. Step 4: Simplify right side
    749,765.78x = 419,664,575,814.31
  5. Step 5: Solve for x
    x = 419,664,575,814.31/749,765.78
  6. Step 6: Final answer
    x = 559,727.57

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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.