Home / 808,999.40-1,116,411.78-446,426.60

Finding the Fourth Proportional to 808,999.40, 1,116,411.78 and 446,426.60

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Solution

The fourth proportional to 808,999.40, 1,116,411.78 and 446,426.60 is: 616,064.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,999.40 : 1,116,411.78 = 446,426.60 : x
  2. Step 2: Convert to fraction form
    808,999.40/1,116,411.78 = 446,426.60/x
  3. Step 3: Cross multiply
    808,999.40x = 1,116,411.78 × 446,426.60
  4. Step 4: Simplify right side
    808,999.40x = 498,395,915,145.35
  5. Step 5: Solve for x
    x = 498,395,915,145.35/808,999.40
  6. Step 6: Final answer
    x = 616,064.63

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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.