Home / 990,863.82-1,367,399.07-538,154.82

Finding the Fourth Proportional to 990,863.82, 1,367,399.07 and 538,154.82

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Solution

The fourth proportional to 990,863.82, 1,367,399.07 and 538,154.82 is: 742,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,863.82 : 1,367,399.07 = 538,154.82 : x
  2. Step 2: Convert to fraction form
    990,863.82/1,367,399.07 = 538,154.82/x
  3. Step 3: Cross multiply
    990,863.82x = 1,367,399.07 × 538,154.82
  4. Step 4: Simplify right side
    990,863.82x = 735,872,400,384.02
  5. Step 5: Solve for x
    x = 735,872,400,384.02/990,863.82
  6. Step 6: Final answer
    x = 742,657.45

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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.