Home / 990,927.36-1,367,485.44-538,222.08

Finding the Fourth Proportional to 990,927.36, 1,367,485.44 and 538,222.08

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Solution

The fourth proportional to 990,927.36, 1,367,485.44 and 538,222.08 is: 742,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,927.36 : 1,367,485.44 = 538,222.08 : x
  2. Step 2: Convert to fraction form
    990,927.36/1,367,485.44 = 538,222.08/x
  3. Step 3: Cross multiply
    990,927.36x = 1,367,485.44 × 538,222.08
  4. Step 4: Simplify right side
    990,927.36x = 736,010,857,886.52
  5. Step 5: Solve for x
    x = 736,010,857,886.52/990,927.36
  6. Step 6: Final answer
    x = 742,749.56

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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.