Home / 286,569.20-429,853.80-263,824.40

Finding the Fourth Proportional to 286,569.20, 429,853.80 and 263,824.40

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Solution

The fourth proportional to 286,569.20, 429,853.80 and 263,824.40 is: 395,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,569.20 : 429,853.80 = 263,824.40 : x
  2. Step 2: Convert to fraction form
    286,569.20/429,853.80 = 263,824.40/x
  3. Step 3: Cross multiply
    286,569.20x = 429,853.80 × 263,824.40
  4. Step 4: Simplify right side
    286,569.20x = 113,405,920,872.72
  5. Step 5: Solve for x
    x = 113,405,920,872.72/286,569.20
  6. Step 6: Final answer
    x = 395,736.60

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1.5x scale

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.