Home / 1,386,015.70-2,076,071.10-1,120,295.20

Finding the Fourth Proportional to 1,386,015.70, 2,076,071.10 and 1,120,295.20

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Solution

The fourth proportional to 1,386,015.70, 2,076,071.10 and 1,120,295.20 is: 1,678,056.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,015.70 : 2,076,071.10 = 1,120,295.20 : x
  2. Step 2: Convert to fraction form
    1,386,015.70/2,076,071.10 = 1,120,295.20/x
  3. Step 3: Cross multiply
    1,386,015.70x = 2,076,071.10 × 1,120,295.20
  4. Step 4: Simplify right side
    1,386,015.70x = 2,325,812,488,188.72
  5. Step 5: Solve for x
    x = 2,325,812,488,188.72/1,386,015.70
  6. Step 6: Final answer
    x = 1,678,056.38

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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.