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Finding the Fourth Proportional to 286,596.60, 429,894.90 and 259,040.40

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Solution

The fourth proportional to 286,596.60, 429,894.90 and 259,040.40 is: 388,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,596.60 : 429,894.90 = 259,040.40 : x
  2. Step 2: Convert to fraction form
    286,596.60/429,894.90 = 259,040.40/x
  3. Step 3: Cross multiply
    286,596.60x = 429,894.90 × 259,040.40
  4. Step 4: Simplify right side
    286,596.60x = 111,360,146,853.96
  5. Step 5: Solve for x
    x = 111,360,146,853.96/286,596.60
  6. Step 6: Final answer
    x = 388,560.60

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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.