Home / 746,342.88-1,029,942.72-406,812.48

Finding the Fourth Proportional to 746,342.88, 1,029,942.72 and 406,812.48

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Solution

The fourth proportional to 746,342.88, 1,029,942.72 and 406,812.48 is: 561,395.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,342.88 : 1,029,942.72 = 406,812.48 : x
  2. Step 2: Convert to fraction form
    746,342.88/1,029,942.72 = 406,812.48/x
  3. Step 3: Cross multiply
    746,342.88x = 1,029,942.72 × 406,812.48
  4. Step 4: Simplify right side
    746,342.88x = 418,993,552,181.15
  5. Step 5: Solve for x
    x = 418,993,552,181.15/746,342.88
  6. Step 6: Final answer
    x = 561,395.52

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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.