Home / 727,424.31-1,091,136.49-221,987.93

Finding the Fourth Proportional to 727,424.31, 1,091,136.49 and 221,987.93

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Solution

The fourth proportional to 727,424.31, 1,091,136.49 and 221,987.93 is: 332,981.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,424.31 : 1,091,136.49 = 221,987.93 : x
  2. Step 2: Convert to fraction form
    727,424.31/1,091,136.49 = 221,987.93/x
  3. Step 3: Cross multiply
    727,424.31x = 1,091,136.49 × 221,987.93
  4. Step 4: Simplify right side
    727,424.31x = 242,219,124,751.91
  5. Step 5: Solve for x
    x = 242,219,124,751.91/727,424.31
  6. Step 6: Final answer
    x = 332,981.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.