Home / 1,999,589.72-2,999,695.61-651,438.47

Finding the Fourth Proportional to 1,999,589.72, 2,999,695.61 and 651,438.47

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Solution

The fourth proportional to 1,999,589.72, 2,999,695.61 and 651,438.47 is: 977,259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,589.72 : 2,999,695.61 = 651,438.47 : x
  2. Step 2: Convert to fraction form
    1,999,589.72/2,999,695.61 = 651,438.47/x
  3. Step 3: Cross multiply
    1,999,589.72x = 2,999,695.61 × 651,438.47
  4. Step 4: Simplify right side
    1,999,589.72x = 1,954,117,127,771.95
  5. Step 5: Solve for x
    x = 1,954,117,127,771.95/1,999,589.72
  6. Step 6: Final answer
    x = 977,259.04

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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.