Home / 746,278.72-1,029,864.96-423,989.34

Finding the Fourth Proportional to 746,278.72, 1,029,864.96 and 423,989.34

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Solution

The fourth proportional to 746,278.72, 1,029,864.96 and 423,989.34 is: 585,105.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,278.72 : 1,029,864.96 = 423,989.34 : x
  2. Step 2: Convert to fraction form
    746,278.72/1,029,864.96 = 423,989.34/x
  3. Step 3: Cross multiply
    746,278.72x = 1,029,864.96 × 423,989.34
  4. Step 4: Simplify right side
    746,278.72x = 436,651,764,679.53
  5. Step 5: Solve for x
    x = 436,651,764,679.53/746,278.72
  6. Step 6: Final answer
    x = 585,105.47

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Double scale
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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.