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Finding the Fourth Proportional to 571,404.30, 788,378.37 and 450,169.32

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Solution

The fourth proportional to 571,404.30, 788,378.37 and 450,169.32 is: 621,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,404.30 : 788,378.37 = 450,169.32 : x
  2. Step 2: Convert to fraction form
    571,404.30/788,378.37 = 450,169.32/x
  3. Step 3: Cross multiply
    571,404.30x = 788,378.37 × 450,169.32
  4. Step 4: Simplify right side
    571,404.30x = 354,903,754,725.61
  5. Step 5: Solve for x
    x = 354,903,754,725.61/571,404.30
  6. Step 6: Final answer
    x = 621,107.95

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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.