Home / 1,090,298.40-1,635,447.60-665,145.60

Finding the Fourth Proportional to 1,090,298.40, 1,635,447.60 and 665,145.60

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Solution

The fourth proportional to 1,090,298.40, 1,635,447.60 and 665,145.60 is: 997,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,298.40 : 1,635,447.60 = 665,145.60 : x
  2. Step 2: Convert to fraction form
    1,090,298.40/1,635,447.60 = 665,145.60/x
  3. Step 3: Cross multiply
    1,090,298.40x = 1,635,447.60 × 665,145.60
  4. Step 4: Simplify right side
    1,090,298.40x = 1,087,810,775,170.56
  5. Step 5: Solve for x
    x = 1,087,810,775,170.56/1,090,298.40
  6. Step 6: Final answer
    x = 997,718.40

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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.