Home / 945,731.84-1,418,236.32-405,939.20

Finding the Fourth Proportional to 945,731.84, 1,418,236.32 and 405,939.20

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Solution

The fourth proportional to 945,731.84, 1,418,236.32 and 405,939.20 is: 608,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,731.84 : 1,418,236.32 = 405,939.20 : x
  2. Step 2: Convert to fraction form
    945,731.84/1,418,236.32 = 405,939.20/x
  3. Step 3: Cross multiply
    945,731.84x = 1,418,236.32 × 405,939.20
  4. Step 4: Simplify right side
    945,731.84x = 575,717,717,151.74
  5. Step 5: Solve for x
    x = 575,717,717,151.74/945,731.84
  6. Step 6: Final answer
    x = 608,753.66

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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.