Home / 736,664.80-1,104,219.60-420,440.80

Finding the Fourth Proportional to 736,664.80, 1,104,219.60 and 420,440.80

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Solution

The fourth proportional to 736,664.80, 1,104,219.60 and 420,440.80 is: 630,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,664.80 : 1,104,219.60 = 420,440.80 : x
  2. Step 2: Convert to fraction form
    736,664.80/1,104,219.60 = 420,440.80/x
  3. Step 3: Cross multiply
    736,664.80x = 1,104,219.60 × 420,440.80
  4. Step 4: Simplify right side
    736,664.80x = 464,258,971,999.68
  5. Step 5: Solve for x
    x = 464,258,971,999.68/736,664.80
  6. Step 6: Final answer
    x = 630,217.40

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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.