Home / 1,638,008.40-2,457,012.60-840,846.90

Finding the Fourth Proportional to 1,638,008.40, 2,457,012.60 and 840,846.90

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Solution

The fourth proportional to 1,638,008.40, 2,457,012.60 and 840,846.90 is: 1,261,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,008.40 : 2,457,012.60 = 840,846.90 : x
  2. Step 2: Convert to fraction form
    1,638,008.40/2,457,012.60 = 840,846.90/x
  3. Step 3: Cross multiply
    1,638,008.40x = 2,457,012.60 × 840,846.90
  4. Step 4: Simplify right side
    1,638,008.40x = 2,065,971,427,970.94
  5. Step 5: Solve for x
    x = 2,065,971,427,970.94/1,638,008.40
  6. Step 6: Final answer
    x = 1,261,270.35

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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.