Home / 1,072,894.32-1,609,343.64-399,123.36

Finding the Fourth Proportional to 1,072,894.32, 1,609,343.64 and 399,123.36

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Solution

The fourth proportional to 1,072,894.32, 1,609,343.64 and 399,123.36 is: 598,685.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,894.32 : 1,609,343.64 = 399,123.36 : x
  2. Step 2: Convert to fraction form
    1,072,894.32/1,609,343.64 = 399,123.36/x
  3. Step 3: Cross multiply
    1,072,894.32x = 1,609,343.64 × 399,123.36
  4. Step 4: Simplify right side
    1,072,894.32x = 642,326,640,991.43
  5. Step 5: Solve for x
    x = 642,326,640,991.43/1,072,894.32
  6. Step 6: Final answer
    x = 598,685.84

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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.