Home / 808,697.40-1,115,999.22-446,143.80

Finding the Fourth Proportional to 808,697.40, 1,115,999.22 and 446,143.80

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Solution

The fourth proportional to 808,697.40, 1,115,999.22 and 446,143.80 is: 615,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,697.40 : 1,115,999.22 = 446,143.80 : x
  2. Step 2: Convert to fraction form
    808,697.40/1,115,999.22 = 446,143.80/x
  3. Step 3: Cross multiply
    808,697.40x = 1,115,999.22 × 446,143.80
  4. Step 4: Simplify right side
    808,697.40x = 497,896,132,807.84
  5. Step 5: Solve for x
    x = 497,896,132,807.84/808,697.40
  6. Step 6: Final answer
    x = 615,676.68

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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.