Home / 1,167,902.80-1,749,089.40-720,005.20

Finding the Fourth Proportional to 1,167,902.80, 1,749,089.40 and 720,005.20

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Solution

The fourth proportional to 1,167,902.80, 1,749,089.40 and 720,005.20 is: 1,078,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,902.80 : 1,749,089.40 = 720,005.20 : x
  2. Step 2: Convert to fraction form
    1,167,902.80/1,749,089.40 = 720,005.20/x
  3. Step 3: Cross multiply
    1,167,902.80x = 1,749,089.40 × 720,005.20
  4. Step 4: Simplify right side
    1,167,902.80x = 1,259,353,463,264.88
  5. Step 5: Solve for x
    x = 1,259,353,463,264.88/1,167,902.80
  6. Step 6: Final answer
    x = 1,078,303.32

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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.