Home / 743,453.25-1,115,740.71-344,374.02

Finding the Fourth Proportional to 743,453.25, 1,115,740.71 and 344,374.02

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Solution

The fourth proportional to 743,453.25, 1,115,740.71 and 344,374.02 is: 516,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,453.25 : 1,115,740.71 = 344,374.02 : x
  2. Step 2: Convert to fraction form
    743,453.25/1,115,740.71 = 344,374.02/x
  3. Step 3: Cross multiply
    743,453.25x = 1,115,740.71 × 344,374.02
  4. Step 4: Simplify right side
    743,453.25x = 384,232,113,580.35
  5. Step 5: Solve for x
    x = 384,232,113,580.35/743,453.25
  6. Step 6: Final answer
    x = 516,820.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.