Home / 753,149.23-1,039,342.51-408,982.39

Finding the Fourth Proportional to 753,149.23, 1,039,342.51 and 408,982.39

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Solution

The fourth proportional to 753,149.23, 1,039,342.51 and 408,982.39 is: 564,393.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,149.23 : 1,039,342.51 = 408,982.39 : x
  2. Step 2: Convert to fraction form
    753,149.23/1,039,342.51 = 408,982.39/x
  3. Step 3: Cross multiply
    753,149.23x = 1,039,342.51 × 408,982.39
  4. Step 4: Simplify right side
    753,149.23x = 425,072,783,768.40
  5. Step 5: Solve for x
    x = 425,072,783,768.40/753,149.23
  6. Step 6: Final answer
    x = 564,393.84

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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.