Home / 1,085,638.60-1,628,457.90-1,069,892.20

Finding the Fourth Proportional to 1,085,638.60, 1,628,457.90 and 1,069,892.20

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Solution

The fourth proportional to 1,085,638.60, 1,628,457.90 and 1,069,892.20 is: 1,604,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,638.60 : 1,628,457.90 = 1,069,892.20 : x
  2. Step 2: Convert to fraction form
    1,085,638.60/1,628,457.90 = 1,069,892.20/x
  3. Step 3: Cross multiply
    1,085,638.60x = 1,628,457.90 × 1,069,892.20
  4. Step 4: Simplify right side
    1,085,638.60x = 1,742,274,405,238.38
  5. Step 5: Solve for x
    x = 1,742,274,405,238.38/1,085,638.60
  6. Step 6: Final answer
    x = 1,604,838.30

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Similar ratio
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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.