Home / 1,246,803.20-1,870,204.80-405,382.40

Finding the Fourth Proportional to 1,246,803.20, 1,870,204.80 and 405,382.40

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Solution

The fourth proportional to 1,246,803.20, 1,870,204.80 and 405,382.40 is: 608,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,803.20 : 1,870,204.80 = 405,382.40 : x
  2. Step 2: Convert to fraction form
    1,246,803.20/1,870,204.80 = 405,382.40/x
  3. Step 3: Cross multiply
    1,246,803.20x = 1,870,204.80 × 405,382.40
  4. Step 4: Simplify right side
    1,246,803.20x = 758,148,110,315.52
  5. Step 5: Solve for x
    x = 758,148,110,315.52/1,246,803.20
  6. Step 6: Final answer
    x = 608,073.60

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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.