Home / 749,671.42-1,034,543.46-405,507.55

Finding the Fourth Proportional to 749,671.42, 1,034,543.46 and 405,507.55

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Solution

The fourth proportional to 749,671.42, 1,034,543.46 and 405,507.55 is: 559,598.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,671.42 : 1,034,543.46 = 405,507.55 : x
  2. Step 2: Convert to fraction form
    749,671.42/1,034,543.46 = 405,507.55/x
  3. Step 3: Cross multiply
    749,671.42x = 1,034,543.46 × 405,507.55
  4. Step 4: Simplify right side
    749,671.42x = 419,515,183,833.12
  5. Step 5: Solve for x
    x = 419,515,183,833.12/749,671.42
  6. Step 6: Final answer
    x = 559,598.74

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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.