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Finding the Fourth Proportional to 1,384,616.04, 1,910,769.12 and 781,004.04

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Solution

The fourth proportional to 1,384,616.04, 1,910,769.12 and 781,004.04 is: 1,077,785.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,616.04 : 1,910,769.12 = 781,004.04 : x
  2. Step 2: Convert to fraction form
    1,384,616.04/1,910,769.12 = 781,004.04/x
  3. Step 3: Cross multiply
    1,384,616.04x = 1,910,769.12 × 781,004.04
  4. Step 4: Simplify right side
    1,384,616.04x = 1,492,318,402,227.25
  5. Step 5: Solve for x
    x = 1,492,318,402,227.25/1,384,616.04
  6. Step 6: Final answer
    x = 1,077,785.00

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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.