Home / 855,292.20-1,283,223.30-286,729.50

Finding the Fourth Proportional to 855,292.20, 1,283,223.30 and 286,729.50

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Solution

The fourth proportional to 855,292.20, 1,283,223.30 and 286,729.50 is: 430,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,292.20 : 1,283,223.30 = 286,729.50 : x
  2. Step 2: Convert to fraction form
    855,292.20/1,283,223.30 = 286,729.50/x
  3. Step 3: Cross multiply
    855,292.20x = 1,283,223.30 × 286,729.50
  4. Step 4: Simplify right side
    855,292.20x = 367,937,975,197.35
  5. Step 5: Solve for x
    x = 367,937,975,197.35/855,292.20
  6. Step 6: Final answer
    x = 430,189.79

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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.