Home / 1,173,175.32-1,618,981.98-636,631.32

Finding the Fourth Proportional to 1,173,175.32, 1,618,981.98 and 636,631.32

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Solution

The fourth proportional to 1,173,175.32, 1,618,981.98 and 636,631.32 is: 878,551.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,175.32 : 1,618,981.98 = 636,631.32 : x
  2. Step 2: Convert to fraction form
    1,173,175.32/1,618,981.98 = 636,631.32/x
  3. Step 3: Cross multiply
    1,173,175.32x = 1,618,981.98 × 636,631.32
  4. Step 4: Simplify right side
    1,173,175.32x = 1,030,694,634,983.61
  5. Step 5: Solve for x
    x = 1,030,694,634,983.61/1,173,175.32
  6. Step 6: Final answer
    x = 878,551.24

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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.