Home / 459,511.80-689,267.94-143,993.40

Finding the Fourth Proportional to 459,511.80, 689,267.94 and 143,993.40

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Solution

The fourth proportional to 459,511.80, 689,267.94 and 143,993.40 is: 215,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,511.80 : 689,267.94 = 143,993.40 : x
  2. Step 2: Convert to fraction form
    459,511.80/689,267.94 = 143,993.40/x
  3. Step 3: Cross multiply
    459,511.80x = 689,267.94 × 143,993.40
  4. Step 4: Simplify right side
    459,511.80x = 99,250,034,191.60
  5. Step 5: Solve for x
    x = 99,250,034,191.60/459,511.80
  6. Step 6: Final answer
    x = 215,990.18

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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.