Home / 1,788,205.60-2,678,809.20-1,076,118.40

Finding the Fourth Proportional to 1,788,205.60, 2,678,809.20 and 1,076,118.40

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Solution

The fourth proportional to 1,788,205.60, 2,678,809.20 and 1,076,118.40 is: 1,612,071.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,205.60 : 2,678,809.20 = 1,076,118.40 : x
  2. Step 2: Convert to fraction form
    1,788,205.60/2,678,809.20 = 1,076,118.40/x
  3. Step 3: Cross multiply
    1,788,205.60x = 2,678,809.20 × 1,076,118.40
  4. Step 4: Simplify right side
    1,788,205.60x = 2,882,715,870,209.28
  5. Step 5: Solve for x
    x = 2,882,715,870,209.28/1,788,205.60
  6. Step 6: Final answer
    x = 1,612,071.83

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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.