Home / 687,164.04-1,030,729.16-266,440.04

Finding the Fourth Proportional to 687,164.04, 1,030,729.16 and 266,440.04

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Solution

The fourth proportional to 687,164.04, 1,030,729.16 and 266,440.04 is: 399,653.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,164.04 : 1,030,729.16 = 266,440.04 : x
  2. Step 2: Convert to fraction form
    687,164.04/1,030,729.16 = 266,440.04/x
  3. Step 3: Cross multiply
    687,164.04x = 1,030,729.16 × 266,440.04
  4. Step 4: Simplify right side
    687,164.04x = 274,627,518,619.57
  5. Step 5: Solve for x
    x = 274,627,518,619.57/687,164.04
  6. Step 6: Final answer
    x = 399,653.51

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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.