Home / 739,954.34-1,021,137.89-400,422.59

Finding the Fourth Proportional to 739,954.34, 1,021,137.89 and 400,422.59

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Solution

The fourth proportional to 739,954.34, 1,021,137.89 and 400,422.59 is: 552,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,954.34 : 1,021,137.89 = 400,422.59 : x
  2. Step 2: Convert to fraction form
    739,954.34/1,021,137.89 = 400,422.59/x
  3. Step 3: Cross multiply
    739,954.34x = 1,021,137.89 × 400,422.59
  4. Step 4: Simplify right side
    739,954.34x = 408,886,671,553.13
  5. Step 5: Solve for x
    x = 408,886,671,553.13/739,954.34
  6. Step 6: Final answer
    x = 552,583.66

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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.