Home / 739,956.96-1,021,141.51-400,425.21

Finding the Fourth Proportional to 739,956.96, 1,021,141.51 and 400,425.21

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Solution

The fourth proportional to 739,956.96, 1,021,141.51 and 400,425.21 is: 552,587.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,956.96 : 1,021,141.51 = 400,425.21 : x
  2. Step 2: Convert to fraction form
    739,956.96/1,021,141.51 = 400,425.21/x
  3. Step 3: Cross multiply
    739,956.96x = 1,021,141.51 × 400,425.21
  4. Step 4: Simplify right side
    739,956.96x = 408,890,802,580.40
  5. Step 5: Solve for x
    x = 408,890,802,580.40/739,956.96
  6. Step 6: Final answer
    x = 552,587.28

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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.