Home / 1,810,068.40-2,715,102.60-687,991.60

Finding the Fourth Proportional to 1,810,068.40, 2,715,102.60 and 687,991.60

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Solution

The fourth proportional to 1,810,068.40, 2,715,102.60 and 687,991.60 is: 1,031,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810,068.40 : 2,715,102.60 = 687,991.60 : x
  2. Step 2: Convert to fraction form
    1,810,068.40/2,715,102.60 = 687,991.60/x
  3. Step 3: Cross multiply
    1,810,068.40x = 2,715,102.60 × 687,991.60
  4. Step 4: Simplify right side
    1,810,068.40x = 1,867,967,781,938.16
  5. Step 5: Solve for x
    x = 1,867,967,781,938.16/1,810,068.40
  6. Step 6: Final answer
    x = 1,031,987.40

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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.