Home / 739,996.96-1,021,203.28-400,472.48

Finding the Fourth Proportional to 739,996.96, 1,021,203.28 and 400,472.48

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Solution

The fourth proportional to 739,996.96, 1,021,203.28 and 400,472.48 is: 552,656.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,996.96 : 1,021,203.28 = 400,472.48 : x
  2. Step 2: Convert to fraction form
    739,996.96/1,021,203.28 = 400,472.48/x
  3. Step 3: Cross multiply
    739,996.96x = 1,021,203.28 × 400,472.48
  4. Step 4: Simplify right side
    739,996.96x = 408,963,810,125.73
  5. Step 5: Solve for x
    x = 408,963,810,125.73/739,996.96
  6. Step 6: Final answer
    x = 552,656.07

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1.5x scale

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.