Home / 1,989,812.90-2,984,719.35-660,116.90

Finding the Fourth Proportional to 1,989,812.90, 2,984,719.35 and 660,116.90

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Solution

The fourth proportional to 1,989,812.90, 2,984,719.35 and 660,116.90 is: 990,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,812.90 : 2,984,719.35 = 660,116.90 : x
  2. Step 2: Convert to fraction form
    1,989,812.90/2,984,719.35 = 660,116.90/x
  3. Step 3: Cross multiply
    1,989,812.90x = 2,984,719.35 × 660,116.90
  4. Step 4: Simplify right side
    1,989,812.90x = 1,970,263,684,692.02
  5. Step 5: Solve for x
    x = 1,970,263,684,692.02/1,989,812.90
  6. Step 6: Final answer
    x = 990,175.35

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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.