Home / 638,827.52-958,667.38-331,362.86

Finding the Fourth Proportional to 638,827.52, 958,667.38 and 331,362.86

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Solution

The fourth proportional to 638,827.52, 958,667.38 and 331,362.86 is: 497,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,827.52 : 958,667.38 = 331,362.86 : x
  2. Step 2: Convert to fraction form
    638,827.52/958,667.38 = 331,362.86/x
  3. Step 3: Cross multiply
    638,827.52x = 958,667.38 × 331,362.86
  4. Step 4: Simplify right side
    638,827.52x = 317,666,759,203.76
  5. Step 5: Solve for x
    x = 317,666,759,203.76/638,827.52
  6. Step 6: Final answer
    x = 497,265.31

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1.5x scale

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.