Home / 434,246.40-652,147.20-420,249.60

Finding the Fourth Proportional to 434,246.40, 652,147.20 and 420,249.60

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Solution

The fourth proportional to 434,246.40, 652,147.20 and 420,249.60 is: 631,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,246.40 : 652,147.20 = 420,249.60 : x
  2. Step 2: Convert to fraction form
    434,246.40/652,147.20 = 420,249.60/x
  3. Step 3: Cross multiply
    434,246.40x = 652,147.20 × 420,249.60
  4. Step 4: Simplify right side
    434,246.40x = 274,064,599,941.12
  5. Step 5: Solve for x
    x = 274,064,599,941.12/434,246.40
  6. Step 6: Final answer
    x = 631,126.94

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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.