Home / 1,087,434.96-1,629,311.80-665,830.48

Finding the Fourth Proportional to 1,087,434.96, 1,629,311.80 and 665,830.48

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Solution

The fourth proportional to 1,087,434.96, 1,629,311.80 and 665,830.48 is: 997,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,434.96 : 1,629,311.80 = 665,830.48 : x
  2. Step 2: Convert to fraction form
    1,087,434.96/1,629,311.80 = 665,830.48/x
  3. Step 3: Cross multiply
    1,087,434.96x = 1,629,311.80 × 665,830.48
  4. Step 4: Simplify right side
    1,087,434.96x = 1,084,845,457,863.66
  5. Step 5: Solve for x
    x = 1,084,845,457,863.66/1,087,434.96
  6. Step 6: Final answer
    x = 997,618.71

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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.