Home / 1,628,517.20-2,445,108.60-919,929.20

Finding the Fourth Proportional to 1,628,517.20, 2,445,108.60 and 919,929.20

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Solution

The fourth proportional to 1,628,517.20, 2,445,108.60 and 919,929.20 is: 1,381,211.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,517.20 : 2,445,108.60 = 919,929.20 : x
  2. Step 2: Convert to fraction form
    1,628,517.20/2,445,108.60 = 919,929.20/x
  3. Step 3: Cross multiply
    1,628,517.20x = 2,445,108.60 × 919,929.20
  4. Step 4: Simplify right side
    1,628,517.20x = 2,249,326,798,311.12
  5. Step 5: Solve for x
    x = 2,249,326,798,311.12/1,628,517.20
  6. Step 6: Final answer
    x = 1,381,211.57

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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.