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Finding the Fourth Proportional to 808,998.40, 1,116,410.40 and 446,425.60

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Solution

The fourth proportional to 808,998.40, 1,116,410.40 and 446,425.60 is: 616,063.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,998.40 : 1,116,410.40 = 446,425.60 : x
  2. Step 2: Convert to fraction form
    808,998.40/1,116,410.40 = 446,425.60/x
  3. Step 3: Cross multiply
    808,998.40x = 1,116,410.40 × 446,425.60
  4. Step 4: Simplify right side
    808,998.40x = 498,394,182,666.24
  5. Step 5: Solve for x
    x = 498,394,182,666.24/808,998.40
  6. Step 6: Final answer
    x = 616,063.25

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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.