Home / 1,443,667.28-1,991,802.84-839,938.64

Finding the Fourth Proportional to 1,443,667.28, 1,991,802.84 and 839,938.64

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Solution

The fourth proportional to 1,443,667.28, 1,991,802.84 and 839,938.64 is: 1,158,848.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,667.28 : 1,991,802.84 = 839,938.64 : x
  2. Step 2: Convert to fraction form
    1,443,667.28/1,991,802.84 = 839,938.64/x
  3. Step 3: Cross multiply
    1,443,667.28x = 1,991,802.84 × 839,938.64
  4. Step 4: Simplify right side
    1,443,667.28x = 1,672,992,168,577.74
  5. Step 5: Solve for x
    x = 1,672,992,168,577.74/1,443,667.28
  6. Step 6: Final answer
    x = 1,158,848.85

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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.