Home / 839,721.72-1,158,609.24-512,951.52

Finding the Fourth Proportional to 839,721.72, 1,158,609.24 and 512,951.52

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Solution

The fourth proportional to 839,721.72, 1,158,609.24 and 512,951.52 is: 707,746.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,721.72 : 1,158,609.24 = 512,951.52 : x
  2. Step 2: Convert to fraction form
    839,721.72/1,158,609.24 = 512,951.52/x
  3. Step 3: Cross multiply
    839,721.72x = 1,158,609.24 × 512,951.52
  4. Step 4: Simplify right side
    839,721.72x = 594,310,370,744.05
  5. Step 5: Solve for x
    x = 594,310,370,744.05/839,721.72
  6. Step 6: Final answer
    x = 707,746.81

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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.