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Finding the Fourth Proportional to 664,720.29, 917,309.16 and 362,914.29

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Solution

The fourth proportional to 664,720.29, 917,309.16 and 362,914.29 is: 500,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,720.29 : 917,309.16 = 362,914.29 : x
  2. Step 2: Convert to fraction form
    664,720.29/917,309.16 = 362,914.29/x
  3. Step 3: Cross multiply
    664,720.29x = 917,309.16 × 362,914.29
  4. Step 4: Simplify right side
    664,720.29x = 332,904,602,511.90
  5. Step 5: Solve for x
    x = 332,904,602,511.90/664,720.29
  6. Step 6: Final answer
    x = 500,819.08

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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.