Home / 849,729.90-1,274,786.88-281,109.66

Finding the Fourth Proportional to 849,729.90, 1,274,786.88 and 281,109.66

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Solution

The fourth proportional to 849,729.90, 1,274,786.88 and 281,109.66 is: 421,728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,729.90 : 1,274,786.88 = 281,109.66 : x
  2. Step 2: Convert to fraction form
    849,729.90/1,274,786.88 = 281,109.66/x
  3. Step 3: Cross multiply
    849,729.90x = 1,274,786.88 × 281,109.66
  4. Step 4: Simplify right side
    849,729.90x = 358,354,900,574.65
  5. Step 5: Solve for x
    x = 358,354,900,574.65/849,729.90
  6. Step 6: Final answer
    x = 421,728.01

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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.