Home / 918,200.20-1,375,955.70-823,430.20

Finding the Fourth Proportional to 918,200.20, 1,375,955.70 and 823,430.20

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Solution

The fourth proportional to 918,200.20, 1,375,955.70 and 823,430.20 is: 1,233,939.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,200.20 : 1,375,955.70 = 823,430.20 : x
  2. Step 2: Convert to fraction form
    918,200.20/1,375,955.70 = 823,430.20/x
  3. Step 3: Cross multiply
    918,200.20x = 1,375,955.70 × 823,430.20
  4. Step 4: Simplify right side
    918,200.20x = 1,133,003,477,242.14
  5. Step 5: Solve for x
    x = 1,133,003,477,242.14/918,200.20
  6. Step 6: Final answer
    x = 1,233,939.48

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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.