Home / 738,374.40-1,107,561.60-402,451.20

Finding the Fourth Proportional to 738,374.40, 1,107,561.60 and 402,451.20

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Solution

The fourth proportional to 738,374.40, 1,107,561.60 and 402,451.20 is: 603,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,374.40 : 1,107,561.60 = 402,451.20 : x
  2. Step 2: Convert to fraction form
    738,374.40/1,107,561.60 = 402,451.20/x
  3. Step 3: Cross multiply
    738,374.40x = 1,107,561.60 × 402,451.20
  4. Step 4: Simplify right side
    738,374.40x = 445,739,494,993.92
  5. Step 5: Solve for x
    x = 445,739,494,993.92/738,374.40
  6. Step 6: Final answer
    x = 603,676.80

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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.