Home / 1,980,584.90-2,971,980.91-1,069,748.95

Finding the Fourth Proportional to 1,980,584.90, 2,971,980.91 and 1,069,748.95

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Solution

The fourth proportional to 1,980,584.90, 2,971,980.91 and 1,069,748.95 is: 1,605,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,584.90 : 2,971,980.91 = 1,069,748.95 : x
  2. Step 2: Convert to fraction form
    1,980,584.90/2,971,980.91 = 1,069,748.95/x
  3. Step 3: Cross multiply
    1,980,584.90x = 2,971,980.91 × 1,069,748.95
  4. Step 4: Simplify right side
    1,980,584.90x = 3,179,273,443,032.64
  5. Step 5: Solve for x
    x = 3,179,273,443,032.64/1,980,584.90
  6. Step 6: Final answer
    x = 1,605,219.47

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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.