Home / 1,308,806.10-1,963,209.15-804,921.30

Finding the Fourth Proportional to 1,308,806.10, 1,963,209.15 and 804,921.30

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Solution

The fourth proportional to 1,308,806.10, 1,963,209.15 and 804,921.30 is: 1,207,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,806.10 : 1,963,209.15 = 804,921.30 : x
  2. Step 2: Convert to fraction form
    1,308,806.10/1,963,209.15 = 804,921.30/x
  3. Step 3: Cross multiply
    1,308,806.10x = 1,963,209.15 × 804,921.30
  4. Step 4: Simplify right side
    1,308,806.10x = 1,580,228,861,189.90
  5. Step 5: Solve for x
    x = 1,580,228,861,189.90/1,308,806.10
  6. Step 6: Final answer
    x = 1,207,381.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.