Home / 909,198.18-1,255,231.08-808,317

Finding the Fourth Proportional to 909,198.18, 1,255,231.08 and 808,317

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Solution

The fourth proportional to 909,198.18, 1,255,231.08 and 808,317 is: 1,115,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,198.18 : 1,255,231.08 = 808,317 : x
  2. Step 2: Convert to fraction form
    909,198.18/1,255,231.08 = 808,317/x
  3. Step 3: Cross multiply
    909,198.18x = 1,255,231.08 × 808,317
  4. Step 4: Simplify right side
    909,198.18x = 1,014,624,620,892.36
  5. Step 5: Solve for x
    x = 1,014,624,620,892.36/909,198.18
  6. Step 6: Final answer
    x = 1,115,955.40

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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.