Home / 1,172,672.10-1,618,327.08-689,230.35

Finding the Fourth Proportional to 1,172,672.10, 1,618,327.08 and 689,230.35

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Solution

The fourth proportional to 1,172,672.10, 1,618,327.08 and 689,230.35 is: 951,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,672.10 : 1,618,327.08 = 689,230.35 : x
  2. Step 2: Convert to fraction form
    1,172,672.10/1,618,327.08 = 689,230.35/x
  3. Step 3: Cross multiply
    1,172,672.10x = 1,618,327.08 × 689,230.35
  4. Step 4: Simplify right side
    1,172,672.10x = 1,115,400,139,762.88
  5. Step 5: Solve for x
    x = 1,115,400,139,762.88/1,172,672.10
  6. Step 6: Final answer
    x = 951,161.15

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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.