Home / 3,638,415.40-5,456,442.16-1,208,916.20

Finding the Fourth Proportional to 3,638,415.40, 5,456,442.16 and 1,208,916.20

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Solution

The fourth proportional to 3,638,415.40, 5,456,442.16 and 1,208,916.20 is: 1,812,981.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638,415.40 : 5,456,442.16 = 1,208,916.20 : x
  2. Step 2: Convert to fraction form
    3,638,415.40/5,456,442.16 = 1,208,916.20/x
  3. Step 3: Cross multiply
    3,638,415.40x = 5,456,442.16 × 1,208,916.20
  4. Step 4: Simplify right side
    3,638,415.40x = 6,596,381,321,586.99
  5. Step 5: Solve for x
    x = 6,596,381,321,586.99/3,638,415.40
  6. Step 6: Final answer
    x = 1,812,981.92

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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.