Home / 815,741.70-1,223,612.55-740,946.30

Finding the Fourth Proportional to 815,741.70, 1,223,612.55 and 740,946.30

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Solution

The fourth proportional to 815,741.70, 1,223,612.55 and 740,946.30 is: 1,111,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,741.70 : 1,223,612.55 = 740,946.30 : x
  2. Step 2: Convert to fraction form
    815,741.70/1,223,612.55 = 740,946.30/x
  3. Step 3: Cross multiply
    815,741.70x = 1,223,612.55 × 740,946.30
  4. Step 4: Simplify right side
    815,741.70x = 906,631,191,556.07
  5. Step 5: Solve for x
    x = 906,631,191,556.07/815,741.70
  6. Step 6: Final answer
    x = 1,111,419.45

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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.