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Finding the Fourth Proportional to 426,605.40, 588,691.80 and 265,455.36

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Solution

The fourth proportional to 426,605.40, 588,691.80 and 265,455.36 is: 366,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,605.40 : 588,691.80 = 265,455.36 : x
  2. Step 2: Convert to fraction form
    426,605.40/588,691.80 = 265,455.36/x
  3. Step 3: Cross multiply
    426,605.40x = 588,691.80 × 265,455.36
  4. Step 4: Simplify right side
    426,605.40x = 156,271,393,698.05
  5. Step 5: Solve for x
    x = 156,271,393,698.05/426,605.40
  6. Step 6: Final answer
    x = 366,313.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.