Home / 814,259.49-1,220,143.69-435,234.16

Finding the Fourth Proportional to 814,259.49, 1,220,143.69 and 435,234.16

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Solution

The fourth proportional to 814,259.49, 1,220,143.69 and 435,234.16 is: 652,185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,259.49 : 1,220,143.69 = 435,234.16 : x
  2. Step 2: Convert to fraction form
    814,259.49/1,220,143.69 = 435,234.16/x
  3. Step 3: Cross multiply
    814,259.49x = 1,220,143.69 × 435,234.16
  4. Step 4: Simplify right side
    814,259.49x = 531,048,213,996.45
  5. Step 5: Solve for x
    x = 531,048,213,996.45/814,259.49
  6. Step 6: Final answer
    x = 652,185.48

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1.5x scale

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.