Home / 718,542.40-1,076,485.20-419,166.40

Finding the Fourth Proportional to 718,542.40, 1,076,485.20 and 419,166.40

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Solution

The fourth proportional to 718,542.40, 1,076,485.20 and 419,166.40 is: 627,974.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,542.40 : 1,076,485.20 = 419,166.40 : x
  2. Step 2: Convert to fraction form
    718,542.40/1,076,485.20 = 419,166.40/x
  3. Step 3: Cross multiply
    718,542.40x = 1,076,485.20 × 419,166.40
  4. Step 4: Simplify right side
    718,542.40x = 451,226,425,937.28
  5. Step 5: Solve for x
    x = 451,226,425,937.28/718,542.40
  6. Step 6: Final answer
    x = 627,974.67

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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.