Home / 1,051,542.40-1,577,313.60-420,908.80

Finding the Fourth Proportional to 1,051,542.40, 1,577,313.60 and 420,908.80

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Solution

The fourth proportional to 1,051,542.40, 1,577,313.60 and 420,908.80 is: 631,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,542.40 : 1,577,313.60 = 420,908.80 : x
  2. Step 2: Convert to fraction form
    1,051,542.40/1,577,313.60 = 420,908.80/x
  3. Step 3: Cross multiply
    1,051,542.40x = 1,577,313.60 × 420,908.80
  4. Step 4: Simplify right side
    1,051,542.40x = 663,905,174,599.68
  5. Step 5: Solve for x
    x = 663,905,174,599.68/1,051,542.40
  6. Step 6: Final answer
    x = 631,363.20

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Similar ratio
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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.