Home / 1,638,002.70-2,457,004.05-840,841.20

Finding the Fourth Proportional to 1,638,002.70, 2,457,004.05 and 840,841.20

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Solution

The fourth proportional to 1,638,002.70, 2,457,004.05 and 840,841.20 is: 1,261,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,002.70 : 2,457,004.05 = 840,841.20 : x
  2. Step 2: Convert to fraction form
    1,638,002.70/2,457,004.05 = 840,841.20/x
  3. Step 3: Cross multiply
    1,638,002.70x = 2,457,004.05 × 840,841.20
  4. Step 4: Simplify right side
    1,638,002.70x = 2,065,950,233,806.86
  5. Step 5: Solve for x
    x = 2,065,950,233,806.86/1,638,002.70
  6. Step 6: Final answer
    x = 1,261,261.80

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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.