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Finding the Fourth Proportional to 1,562,404, 2,156,347.60 and 989,497.44

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Solution

The fourth proportional to 1,562,404, 2,156,347.60 and 989,497.44 is: 1,365,652.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562,404 : 2,156,347.60 = 989,497.44 : x
  2. Step 2: Convert to fraction form
    1,562,404/2,156,347.60 = 989,497.44/x
  3. Step 3: Cross multiply
    1,562,404x = 2,156,347.60 × 989,497.44
  4. Step 4: Simplify right side
    1,562,404x = 2,133,700,429,950.14
  5. Step 5: Solve for x
    x = 2,133,700,429,950.14/1,562,404
  6. Step 6: Final answer
    x = 1,365,652.18

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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.