Home / 815,284.08-1,125,195.80-492,996.51

Finding the Fourth Proportional to 815,284.08, 1,125,195.80 and 492,996.51

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Solution

The fourth proportional to 815,284.08, 1,125,195.80 and 492,996.51 is: 680,397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,284.08 : 1,125,195.80 = 492,996.51 : x
  2. Step 2: Convert to fraction form
    815,284.08/1,125,195.80 = 492,996.51/x
  3. Step 3: Cross multiply
    815,284.08x = 1,125,195.80 × 492,996.51
  4. Step 4: Simplify right side
    815,284.08x = 554,717,600,001.68
  5. Step 5: Solve for x
    x = 554,717,600,001.68/815,284.08
  6. Step 6: Final answer
    x = 680,397.93

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1.5x scale

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.