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Finding the Fourth Proportional to 521,844, 720,144.72 and 295,533.24

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Solution

The fourth proportional to 521,844, 720,144.72 and 295,533.24 is: 407,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,844 : 720,144.72 = 295,533.24 : x
  2. Step 2: Convert to fraction form
    521,844/720,144.72 = 295,533.24/x
  3. Step 3: Cross multiply
    521,844x = 720,144.72 × 295,533.24
  4. Step 4: Simplify right side
    521,844x = 212,826,702,370.49
  5. Step 5: Solve for x
    x = 212,826,702,370.49/521,844
  6. Step 6: Final answer
    x = 407,835.87

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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.