Home / 2,147,220-3,220,849.44-651,312

Finding the Fourth Proportional to 2,147,220, 3,220,849.44 and 651,312

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Solution

The fourth proportional to 2,147,220, 3,220,849.44 and 651,312 is: 976,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,220 : 3,220,849.44 = 651,312 : x
  2. Step 2: Convert to fraction form
    2,147,220/3,220,849.44 = 651,312/x
  3. Step 3: Cross multiply
    2,147,220x = 3,220,849.44 × 651,312
  4. Step 4: Simplify right side
    2,147,220x = 2,097,777,890,465.28
  5. Step 5: Solve for x
    x = 2,097,777,890,465.28/2,147,220
  6. Step 6: Final answer
    x = 976,973.90

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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.