Home / 945,730.84-1,418,234.82-405,938.20

Finding the Fourth Proportional to 945,730.84, 1,418,234.82 and 405,938.20

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Solution

The fourth proportional to 945,730.84, 1,418,234.82 and 405,938.20 is: 608,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,730.84 : 1,418,234.82 = 405,938.20 : x
  2. Step 2: Convert to fraction form
    945,730.84/1,418,234.82 = 405,938.20/x
  3. Step 3: Cross multiply
    945,730.84x = 1,418,234.82 × 405,938.20
  4. Step 4: Simplify right side
    945,730.84x = 575,715,690,008.12
  5. Step 5: Solve for x
    x = 575,715,690,008.12/945,730.84
  6. Step 6: Final answer
    x = 608,752.16

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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.