Home / 749,544.96-1,034,372.04-405,380.89

Finding the Fourth Proportional to 749,544.96, 1,034,372.04 and 405,380.89

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Solution

The fourth proportional to 749,544.96, 1,034,372.04 and 405,380.89 is: 559,425.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,544.96 : 1,034,372.04 = 405,380.89 : x
  2. Step 2: Convert to fraction form
    749,544.96/1,034,372.04 = 405,380.89/x
  3. Step 3: Cross multiply
    749,544.96x = 1,034,372.04 × 405,380.89
  4. Step 4: Simplify right side
    749,544.96x = 419,314,652,994.46
  5. Step 5: Solve for x
    x = 419,314,652,994.46/749,544.96
  6. Step 6: Final answer
    x = 559,425.62

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Double scale
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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.