Home / 670,154.90-1,004,667.12-290,790.39

Finding the Fourth Proportional to 670,154.90, 1,004,667.12 and 290,790.39

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Solution

The fourth proportional to 670,154.90, 1,004,667.12 and 290,790.39 is: 435,940.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,154.90 : 1,004,667.12 = 290,790.39 : x
  2. Step 2: Convert to fraction form
    670,154.90/1,004,667.12 = 290,790.39/x
  3. Step 3: Cross multiply
    670,154.90x = 1,004,667.12 × 290,790.39
  4. Step 4: Simplify right side
    670,154.90x = 292,147,543,644.98
  5. Step 5: Solve for x
    x = 292,147,543,644.98/670,154.90
  6. Step 6: Final answer
    x = 435,940.33

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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.