Home / 1,997,572-2,756,699.28-1,212,647.20

Finding the Fourth Proportional to 1,997,572, 2,756,699.28 and 1,212,647.20

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Solution

The fourth proportional to 1,997,572, 2,756,699.28 and 1,212,647.20 is: 1,673,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,572 : 2,756,699.28 = 1,212,647.20 : x
  2. Step 2: Convert to fraction form
    1,997,572/2,756,699.28 = 1,212,647.20/x
  3. Step 3: Cross multiply
    1,997,572x = 2,756,699.28 × 1,212,647.20
  4. Step 4: Simplify right side
    1,997,572x = 3,342,903,663,134.02
  5. Step 5: Solve for x
    x = 3,342,903,663,134.02/1,997,572
  6. Step 6: Final answer
    x = 1,673,483.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.