Home / 728,766.58-1,005,699.26-406,497.55

Finding the Fourth Proportional to 728,766.58, 1,005,699.26 and 406,497.55

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Solution

The fourth proportional to 728,766.58, 1,005,699.26 and 406,497.55 is: 560,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,766.58 : 1,005,699.26 = 406,497.55 : x
  2. Step 2: Convert to fraction form
    728,766.58/1,005,699.26 = 406,497.55/x
  3. Step 3: Cross multiply
    728,766.58x = 1,005,699.26 × 406,497.55
  4. Step 4: Simplify right side
    728,766.58x = 408,814,285,226.81
  5. Step 5: Solve for x
    x = 408,814,285,226.81/728,766.58
  6. Step 6: Final answer
    x = 560,967.39

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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.