Home / 1,226,821.20-1,840,231.80-340,357.20

Finding the Fourth Proportional to 1,226,821.20, 1,840,231.80 and 340,357.20

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Solution

The fourth proportional to 1,226,821.20, 1,840,231.80 and 340,357.20 is: 510,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,821.20 : 1,840,231.80 = 340,357.20 : x
  2. Step 2: Convert to fraction form
    1,226,821.20/1,840,231.80 = 340,357.20/x
  3. Step 3: Cross multiply
    1,226,821.20x = 1,840,231.80 × 340,357.20
  4. Step 4: Simplify right side
    1,226,821.20x = 626,336,142,798.96
  5. Step 5: Solve for x
    x = 626,336,142,798.96/1,226,821.20
  6. Step 6: Final answer
    x = 510,535.80

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Double scale
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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.