Home / 903,829.78-1,247,274.21-521,848.36

Finding the Fourth Proportional to 903,829.78, 1,247,274.21 and 521,848.36

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Solution

The fourth proportional to 903,829.78, 1,247,274.21 and 521,848.36 is: 720,144.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,829.78 : 1,247,274.21 = 521,848.36 : x
  2. Step 2: Convert to fraction form
    903,829.78/1,247,274.21 = 521,848.36/x
  3. Step 3: Cross multiply
    903,829.78x = 1,247,274.21 × 521,848.36
  4. Step 4: Simplify right side
    903,829.78x = 650,888,000,958.80
  5. Step 5: Solve for x
    x = 650,888,000,958.80/903,829.78
  6. Step 6: Final answer
    x = 720,144.45

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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.