Home / 286,512.04-429,619.74-128,604.52

Finding the Fourth Proportional to 286,512.04, 429,619.74 and 128,604.52

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Solution

The fourth proportional to 286,512.04, 429,619.74 and 128,604.52 is: 192,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,512.04 : 429,619.74 = 128,604.52 : x
  2. Step 2: Convert to fraction form
    286,512.04/429,619.74 = 128,604.52/x
  3. Step 3: Cross multiply
    286,512.04x = 429,619.74 × 128,604.52
  4. Step 4: Simplify right side
    286,512.04x = 55,251,040,445.22
  5. Step 5: Solve for x
    x = 55,251,040,445.22/286,512.04
  6. Step 6: Final answer
    x = 192,840.20

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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.