Home / 1,088,464.08-1,629,980.64-687,896.40

Finding the Fourth Proportional to 1,088,464.08, 1,629,980.64 and 687,896.40

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Solution

The fourth proportional to 1,088,464.08, 1,629,980.64 and 687,896.40 is: 1,030,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,464.08 : 1,629,980.64 = 687,896.40 : x
  2. Step 2: Convert to fraction form
    1,088,464.08/1,629,980.64 = 687,896.40/x
  3. Step 3: Cross multiply
    1,088,464.08x = 1,629,980.64 × 687,896.40
  4. Step 4: Simplify right side
    1,088,464.08x = 1,121,257,814,325.70
  5. Step 5: Solve for x
    x = 1,121,257,814,325.70/1,088,464.08
  6. Step 6: Final answer
    x = 1,030,128.45

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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.