Home / 1,188,398.22-1,782,149.55-430,052.12

Finding the Fourth Proportional to 1,188,398.22, 1,782,149.55 and 430,052.12

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Solution

The fourth proportional to 1,188,398.22, 1,782,149.55 and 430,052.12 is: 644,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,398.22 : 1,782,149.55 = 430,052.12 : x
  2. Step 2: Convert to fraction form
    1,188,398.22/1,782,149.55 = 430,052.12/x
  3. Step 3: Cross multiply
    1,188,398.22x = 1,782,149.55 × 430,052.12
  4. Step 4: Simplify right side
    1,188,398.22x = 766,417,188,294.16
  5. Step 5: Solve for x
    x = 766,417,188,294.16/1,188,398.22
  6. Step 6: Final answer
    x = 644,916.14

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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.