Home / 990,947.16-1,367,508.44-538,238.16

Finding the Fourth Proportional to 990,947.16, 1,367,508.44 and 538,238.16

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Solution

The fourth proportional to 990,947.16, 1,367,508.44 and 538,238.16 is: 742,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,947.16 : 1,367,508.44 = 538,238.16 : x
  2. Step 2: Convert to fraction form
    990,947.16/1,367,508.44 = 538,238.16/x
  3. Step 3: Cross multiply
    990,947.16x = 1,367,508.44 × 538,238.16
  4. Step 4: Simplify right side
    990,947.16x = 736,045,222,747.51
  5. Step 5: Solve for x
    x = 736,045,222,747.51/990,947.16
  6. Step 6: Final answer
    x = 742,769.40

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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.