Home / 1,000,135.20-1,498,890.60-400,605.60

Finding the Fourth Proportional to 1,000,135.20, 1,498,890.60 and 400,605.60

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Solution

The fourth proportional to 1,000,135.20, 1,498,890.60 and 400,605.60 is: 600,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,135.20 : 1,498,890.60 = 400,605.60 : x
  2. Step 2: Convert to fraction form
    1,000,135.20/1,498,890.60 = 400,605.60/x
  3. Step 3: Cross multiply
    1,000,135.20x = 1,498,890.60 × 400,605.60
  4. Step 4: Simplify right side
    1,000,135.20x = 600,463,968,147.36
  5. Step 5: Solve for x
    x = 600,463,968,147.36/1,000,135.20
  6. Step 6: Final answer
    x = 600,382.80

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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.