Home / 1,680,453.72-2,318,997.96-916,461.72

Finding the Fourth Proportional to 1,680,453.72, 2,318,997.96 and 916,461.72

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Solution

The fourth proportional to 1,680,453.72, 2,318,997.96 and 916,461.72 is: 1,264,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,453.72 : 2,318,997.96 = 916,461.72 : x
  2. Step 2: Convert to fraction form
    1,680,453.72/2,318,997.96 = 916,461.72/x
  3. Step 3: Cross multiply
    1,680,453.72x = 2,318,997.96 × 916,461.72
  4. Step 4: Simplify right side
    1,680,453.72x = 2,125,272,859,098.09
  5. Step 5: Solve for x
    x = 2,125,272,859,098.09/1,680,453.72
  6. Step 6: Final answer
    x = 1,264,701.81

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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.