Home / 1,186,949.12-1,780,695.04-398,981.12

Finding the Fourth Proportional to 1,186,949.12, 1,780,695.04 and 398,981.12

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Solution

The fourth proportional to 1,186,949.12, 1,780,695.04 and 398,981.12 is: 598,562.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,949.12 : 1,780,695.04 = 398,981.12 : x
  2. Step 2: Convert to fraction form
    1,186,949.12/1,780,695.04 = 398,981.12/x
  3. Step 3: Cross multiply
    1,186,949.12x = 1,780,695.04 × 398,981.12
  4. Step 4: Simplify right side
    1,186,949.12x = 710,463,701,437.65
  5. Step 5: Solve for x
    x = 710,463,701,437.65/1,186,949.12
  6. Step 6: Final answer
    x = 598,562.89

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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.