Home / 1,673,351.91-2,309,243.45-909,405.45

Finding the Fourth Proportional to 1,673,351.91, 2,309,243.45 and 909,405.45

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Solution

The fourth proportional to 1,673,351.91, 2,309,243.45 and 909,405.45 is: 1,254,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673,351.91 : 2,309,243.45 = 909,405.45 : x
  2. Step 2: Convert to fraction form
    1,673,351.91/2,309,243.45 = 909,405.45/x
  3. Step 3: Cross multiply
    1,673,351.91x = 2,309,243.45 × 909,405.45
  4. Step 4: Simplify right side
    1,673,351.91x = 2,100,038,574,259.78
  5. Step 5: Solve for x
    x = 2,100,038,574,259.78/1,673,351.91
  6. Step 6: Final answer
    x = 1,254,989.20

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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.