Home / 1,159,893.90-1,600,611.53-643,670.32

Finding the Fourth Proportional to 1,159,893.90, 1,600,611.53 and 643,670.32

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Solution

The fourth proportional to 1,159,893.90, 1,600,611.53 and 643,670.32 is: 888,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,893.90 : 1,600,611.53 = 643,670.32 : x
  2. Step 2: Convert to fraction form
    1,159,893.90/1,600,611.53 = 643,670.32/x
  3. Step 3: Cross multiply
    1,159,893.90x = 1,600,611.53 × 643,670.32
  4. Step 4: Simplify right side
    1,159,893.90x = 1,030,266,132,492.44
  5. Step 5: Solve for x
    x = 1,030,266,132,492.44/1,159,893.90
  6. Step 6: Final answer
    x = 888,241.70

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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.