Home / 714,115.27-985,509.89-427,580.61

Finding the Fourth Proportional to 714,115.27, 985,509.89 and 427,580.61

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Solution

The fourth proportional to 714,115.27, 985,509.89 and 427,580.61 is: 590,079.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,115.27 : 985,509.89 = 427,580.61 : x
  2. Step 2: Convert to fraction form
    714,115.27/985,509.89 = 427,580.61/x
  3. Step 3: Cross multiply
    714,115.27x = 985,509.89 × 427,580.61
  4. Step 4: Simplify right side
    714,115.27x = 421,384,919,927.23
  5. Step 5: Solve for x
    x = 421,384,919,927.23/714,115.27
  6. Step 6: Final answer
    x = 590,079.69

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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.