Home / 1,160,144.16-1,600,917.12-643,924.32

Finding the Fourth Proportional to 1,160,144.16, 1,600,917.12 and 643,924.32

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Solution

The fourth proportional to 1,160,144.16, 1,600,917.12 and 643,924.32 is: 888,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160,144.16 : 1,600,917.12 = 643,924.32 : x
  2. Step 2: Convert to fraction form
    1,160,144.16/1,600,917.12 = 643,924.32/x
  3. Step 3: Cross multiply
    1,160,144.16x = 1,600,917.12 × 643,924.32
  4. Step 4: Simplify right side
    1,160,144.16x = 1,030,869,467,872.36
  5. Step 5: Solve for x
    x = 1,030,869,467,872.36/1,160,144.16
  6. Step 6: Final answer
    x = 888,570.15

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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.