Home / 1,638,143.40-2,457,215.10-1,466,901.30

Finding the Fourth Proportional to 1,638,143.40, 2,457,215.10 and 1,466,901.30

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Solution

The fourth proportional to 1,638,143.40, 2,457,215.10 and 1,466,901.30 is: 2,200,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,143.40 : 2,457,215.10 = 1,466,901.30 : x
  2. Step 2: Convert to fraction form
    1,638,143.40/2,457,215.10 = 1,466,901.30/x
  3. Step 3: Cross multiply
    1,638,143.40x = 2,457,215.10 × 1,466,901.30
  4. Step 4: Simplify right side
    1,638,143.40x = 3,604,492,024,569.63
  5. Step 5: Solve for x
    x = 3,604,492,024,569.63/1,638,143.40
  6. Step 6: Final answer
    x = 2,200,351.95

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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.