Home / 740,351.43-1,021,680.36-400,817.25

Finding the Fourth Proportional to 740,351.43, 1,021,680.36 and 400,817.25

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Solution

The fourth proportional to 740,351.43, 1,021,680.36 and 400,817.25 is: 553,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,351.43 : 1,021,680.36 = 400,817.25 : x
  2. Step 2: Convert to fraction form
    740,351.43/1,021,680.36 = 400,817.25/x
  3. Step 3: Cross multiply
    740,351.43x = 1,021,680.36 × 400,817.25
  4. Step 4: Simplify right side
    740,351.43x = 409,507,112,274.21
  5. Step 5: Solve for x
    x = 409,507,112,274.21/740,351.43
  6. Step 6: Final answer
    x = 553,125.31

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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.