Home / 1,209,787.80-1,669,666.14-693,743.64

Finding the Fourth Proportional to 1,209,787.80, 1,669,666.14 and 693,743.64

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Solution

The fourth proportional to 1,209,787.80, 1,669,666.14 and 693,743.64 is: 957,457.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,787.80 : 1,669,666.14 = 693,743.64 : x
  2. Step 2: Convert to fraction form
    1,209,787.80/1,669,666.14 = 693,743.64/x
  3. Step 3: Cross multiply
    1,209,787.80x = 1,669,666.14 × 693,743.64
  4. Step 4: Simplify right side
    1,209,787.80x = 1,158,320,265,548.35
  5. Step 5: Solve for x
    x = 1,158,320,265,548.35/1,209,787.80
  6. Step 6: Final answer
    x = 957,457.39

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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.