Home / 1,434,721.61-1,979,891.74-790,201.78

Finding the Fourth Proportional to 1,434,721.61, 1,979,891.74 and 790,201.78

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Solution

The fourth proportional to 1,434,721.61, 1,979,891.74 and 790,201.78 is: 1,090,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,721.61 : 1,979,891.74 = 790,201.78 : x
  2. Step 2: Convert to fraction form
    1,434,721.61/1,979,891.74 = 790,201.78/x
  3. Step 3: Cross multiply
    1,434,721.61x = 1,979,891.74 × 790,201.78
  4. Step 4: Simplify right side
    1,434,721.61x = 1,564,513,973,193.32
  5. Step 5: Solve for x
    x = 1,564,513,973,193.32/1,434,721.61
  6. Step 6: Final answer
    x = 1,090,465.19

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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.