Home / 1,224,780.53-1,690,203.70-673,531.77

Finding the Fourth Proportional to 1,224,780.53, 1,690,203.70 and 673,531.77

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Solution

The fourth proportional to 1,224,780.53, 1,690,203.70 and 673,531.77 is: 929,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,780.53 : 1,690,203.70 = 673,531.77 : x
  2. Step 2: Convert to fraction form
    1,224,780.53/1,690,203.70 = 673,531.77/x
  3. Step 3: Cross multiply
    1,224,780.53x = 1,690,203.70 × 673,531.77
  4. Step 4: Simplify right side
    1,224,780.53x = 1,138,405,889,721.55
  5. Step 5: Solve for x
    x = 1,138,405,889,721.55/1,224,780.53
  6. Step 6: Final answer
    x = 929,477.45

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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.