Home / 739,898.40-1,109,847.60-385,604.40

Finding the Fourth Proportional to 739,898.40, 1,109,847.60 and 385,604.40

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Solution

The fourth proportional to 739,898.40, 1,109,847.60 and 385,604.40 is: 578,406.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,898.40 : 1,109,847.60 = 385,604.40 : x
  2. Step 2: Convert to fraction form
    739,898.40/1,109,847.60 = 385,604.40/x
  3. Step 3: Cross multiply
    739,898.40x = 1,109,847.60 × 385,604.40
  4. Step 4: Simplify right side
    739,898.40x = 427,962,117,889.44
  5. Step 5: Solve for x
    x = 427,962,117,889.44/739,898.40
  6. Step 6: Final answer
    x = 578,406.60

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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.