Home / 859,479.78-1,186,012.56-496,926.90

Finding the Fourth Proportional to 859,479.78, 1,186,012.56 and 496,926.90

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Solution

The fourth proportional to 859,479.78, 1,186,012.56 and 496,926.90 is: 685,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,479.78 : 1,186,012.56 = 496,926.90 : x
  2. Step 2: Convert to fraction form
    859,479.78/1,186,012.56 = 496,926.90/x
  3. Step 3: Cross multiply
    859,479.78x = 1,186,012.56 × 496,926.90
  4. Step 4: Simplify right side
    859,479.78x = 589,361,544,801.86
  5. Step 5: Solve for x
    x = 589,361,544,801.86/859,479.78
  6. Step 6: Final answer
    x = 685,718.92

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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.