Home / 1,558,979.35-2,151,370.37-870,663.47

Finding the Fourth Proportional to 1,558,979.35, 2,151,370.37 and 870,663.47

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Solution

The fourth proportional to 1,558,979.35, 2,151,370.37 and 870,663.47 is: 1,201,503.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558,979.35 : 2,151,370.37 = 870,663.47 : x
  2. Step 2: Convert to fraction form
    1,558,979.35/2,151,370.37 = 870,663.47/x
  3. Step 3: Cross multiply
    1,558,979.35x = 2,151,370.37 × 870,663.47
  4. Step 4: Simplify right side
    1,558,979.35x = 1,873,119,591,599.38
  5. Step 5: Solve for x
    x = 1,873,119,591,599.38/1,558,979.35
  6. Step 6: Final answer
    x = 1,201,503.79

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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.