Home / 1,109,753.46-1,531,342.53-644,516.46

Finding the Fourth Proportional to 1,109,753.46, 1,531,342.53 and 644,516.46

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Solution

The fourth proportional to 1,109,753.46, 1,531,342.53 and 644,516.46 is: 889,364.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,753.46 : 1,531,342.53 = 644,516.46 : x
  2. Step 2: Convert to fraction form
    1,109,753.46/1,531,342.53 = 644,516.46/x
  3. Step 3: Cross multiply
    1,109,753.46x = 1,531,342.53 × 644,516.46
  4. Step 4: Simplify right side
    1,109,753.46x = 986,975,466,483.04
  5. Step 5: Solve for x
    x = 986,975,466,483.04/1,109,753.46
  6. Step 6: Final answer
    x = 889,364.62

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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.