Home / 1,087,056.90-1,629,030.15-800,511.30

Finding the Fourth Proportional to 1,087,056.90, 1,629,030.15 and 800,511.30

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Solution

The fourth proportional to 1,087,056.90, 1,629,030.15 and 800,511.30 is: 1,199,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,056.90 : 1,629,030.15 = 800,511.30 : x
  2. Step 2: Convert to fraction form
    1,087,056.90/1,629,030.15 = 800,511.30/x
  3. Step 3: Cross multiply
    1,087,056.90x = 1,629,030.15 × 800,511.30
  4. Step 4: Simplify right side
    1,087,056.90x = 1,304,057,043,115.70
  5. Step 5: Solve for x
    x = 1,304,057,043,115.70/1,087,056.90
  6. Step 6: Final answer
    x = 1,199,621.70

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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.