Home / 1,032,400.32-1,421,416.80-880,889.28

Finding the Fourth Proportional to 1,032,400.32, 1,421,416.80 and 880,889.28

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Solution

The fourth proportional to 1,032,400.32, 1,421,416.80 and 880,889.28 is: 1,212,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032,400.32 : 1,421,416.80 = 880,889.28 : x
  2. Step 2: Convert to fraction form
    1,032,400.32/1,421,416.80 = 880,889.28/x
  3. Step 3: Cross multiply
    1,032,400.32x = 1,421,416.80 × 880,889.28
  4. Step 4: Simplify right side
    1,032,400.32x = 1,252,110,821,531.90
  5. Step 5: Solve for x
    x = 1,252,110,821,531.90/1,032,400.32
  6. Step 6: Final answer
    x = 1,212,815.22

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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.