Home / 815,743.25-1,223,645.64-310,210.00

Finding the Fourth Proportional to 815,743.25, 1,223,645.64 and 310,210.00

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Solution

The fourth proportional to 815,743.25, 1,223,645.64 and 310,210.00 is: 465,326.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,743.25 : 1,223,645.64 = 310,210.00 : x
  2. Step 2: Convert to fraction form
    815,743.25/1,223,645.64 = 310,210.00/x
  3. Step 3: Cross multiply
    815,743.25x = 1,223,645.64 × 310,210.00
  4. Step 4: Simplify right side
    815,743.25x = 379,587,116,645.01
  5. Step 5: Solve for x
    x = 379,587,116,645.01/815,743.25
  6. Step 6: Final answer
    x = 465,326.70

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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.