Home / 1,646,947.71-2,272,269.72-921,680.19

Finding the Fourth Proportional to 1,646,947.71, 2,272,269.72 and 921,680.19

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Solution

The fourth proportional to 1,646,947.71, 2,272,269.72 and 921,680.19 is: 1,271,628.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646,947.71 : 2,272,269.72 = 921,680.19 : x
  2. Step 2: Convert to fraction form
    1,646,947.71/2,272,269.72 = 921,680.19/x
  3. Step 3: Cross multiply
    1,646,947.71x = 2,272,269.72 × 921,680.19
  4. Step 4: Simplify right side
    1,646,947.71x = 2,094,305,987,260.85
  5. Step 5: Solve for x
    x = 2,094,305,987,260.85/1,646,947.71
  6. Step 6: Final answer
    x = 1,271,628.71

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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.