Home / 2,220,572-3,330,950.16-644,636

Finding the Fourth Proportional to 2,220,572, 3,330,950.16 and 644,636

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Solution

The fourth proportional to 2,220,572, 3,330,950.16 and 644,636 is: 966,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220,572 : 3,330,950.16 = 644,636 : x
  2. Step 2: Convert to fraction form
    2,220,572/3,330,950.16 = 644,636/x
  3. Step 3: Cross multiply
    2,220,572x = 3,330,950.16 × 644,636
  4. Step 4: Simplify right side
    2,220,572x = 2,147,250,387,341.76
  5. Step 5: Solve for x
    x = 2,147,250,387,341.76/2,220,572
  6. Step 6: Final answer
    x = 966,980.75

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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.