Home / 1,386,014.70-2,076,069.60-1,120,294.20

Finding the Fourth Proportional to 1,386,014.70, 2,076,069.60 and 1,120,294.20

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Solution

The fourth proportional to 1,386,014.70, 2,076,069.60 and 1,120,294.20 is: 1,678,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,014.70 : 2,076,069.60 = 1,120,294.20 : x
  2. Step 2: Convert to fraction form
    1,386,014.70/2,076,069.60 = 1,120,294.20/x
  3. Step 3: Cross multiply
    1,386,014.70x = 2,076,069.60 × 1,120,294.20
  4. Step 4: Simplify right side
    1,386,014.70x = 2,325,808,731,676.32
  5. Step 5: Solve for x
    x = 2,325,808,731,676.32/1,386,014.70
  6. Step 6: Final answer
    x = 1,678,054.88

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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.