Home / 749,761.53-1,034,667.81-405,596.64

Finding the Fourth Proportional to 749,761.53, 1,034,667.81 and 405,596.64

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Solution

The fourth proportional to 749,761.53, 1,034,667.81 and 405,596.64 is: 559,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,761.53 : 1,034,667.81 = 405,596.64 : x
  2. Step 2: Convert to fraction form
    749,761.53/1,034,667.81 = 405,596.64/x
  3. Step 3: Cross multiply
    749,761.53x = 1,034,667.81 × 405,596.64
  4. Step 4: Simplify right side
    749,761.53x = 419,657,791,132.16
  5. Step 5: Solve for x
    x = 419,657,791,132.16/749,761.53
  6. Step 6: Final answer
    x = 559,721.69

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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.