Home / 1,129,356.72-1,558,308.96-639,322.92

Finding the Fourth Proportional to 1,129,356.72, 1,558,308.96 and 639,322.92

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Solution

The fourth proportional to 1,129,356.72, 1,558,308.96 and 639,322.92 is: 882,150.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,356.72 : 1,558,308.96 = 639,322.92 : x
  2. Step 2: Convert to fraction form
    1,129,356.72/1,558,308.96 = 639,322.92/x
  3. Step 3: Cross multiply
    1,129,356.72x = 1,558,308.96 × 639,322.92
  4. Step 4: Simplify right side
    1,129,356.72x = 996,262,634,569.36
  5. Step 5: Solve for x
    x = 996,262,634,569.36/1,129,356.72
  6. Step 6: Final answer
    x = 882,150.53

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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.