Home / 1,129,340.23-1,558,746.71-646,171.79

Finding the Fourth Proportional to 1,129,340.23, 1,558,746.71 and 646,171.79

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Solution

The fourth proportional to 1,129,340.23, 1,558,746.71 and 646,171.79 is: 891,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,340.23 : 1,558,746.71 = 646,171.79 : x
  2. Step 2: Convert to fraction form
    1,129,340.23/1,558,746.71 = 646,171.79/x
  3. Step 3: Cross multiply
    1,129,340.23x = 1,558,746.71 × 646,171.79
  4. Step 4: Simplify right side
    1,129,340.23x = 1,007,218,151,757.31
  5. Step 5: Solve for x
    x = 1,007,218,151,757.31/1,129,340.23
  6. Step 6: Final answer
    x = 891,864.23

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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.