Home / 740,884.08-1,111,331.56-208,458.92

Finding the Fourth Proportional to 740,884.08, 1,111,331.56 and 208,458.92

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Solution

The fourth proportional to 740,884.08, 1,111,331.56 and 208,458.92 is: 312,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,884.08 : 1,111,331.56 = 208,458.92 : x
  2. Step 2: Convert to fraction form
    740,884.08/1,111,331.56 = 208,458.92/x
  3. Step 3: Cross multiply
    740,884.08x = 1,111,331.56 × 208,458.92
  4. Step 4: Simplify right side
    740,884.08x = 231,666,976,759.52
  5. Step 5: Solve for x
    x = 231,666,976,759.52/740,884.08
  6. Step 6: Final answer
    x = 312,689.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.