Home / 1,208,667.20-1,808,528.40-729,172.94

Finding the Fourth Proportional to 1,208,667.20, 1,808,528.40 and 729,172.94

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Solution

The fourth proportional to 1,208,667.20, 1,808,528.40 and 729,172.94 is: 1,091,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,667.20 : 1,808,528.40 = 729,172.94 : x
  2. Step 2: Convert to fraction form
    1,208,667.20/1,808,528.40 = 729,172.94/x
  3. Step 3: Cross multiply
    1,208,667.20x = 1,808,528.40 × 729,172.94
  4. Step 4: Simplify right side
    1,208,667.20x = 1,318,729,970,501.50
  5. Step 5: Solve for x
    x = 1,318,729,970,501.50/1,208,667.20
  6. Step 6: Final answer
    x = 1,091,061.27

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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.