Home / 1,105,092.10-1,657,638.15-768,512.80

Finding the Fourth Proportional to 1,105,092.10, 1,657,638.15 and 768,512.80

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Solution

The fourth proportional to 1,105,092.10, 1,657,638.15 and 768,512.80 is: 1,152,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,092.10 : 1,657,638.15 = 768,512.80 : x
  2. Step 2: Convert to fraction form
    1,105,092.10/1,657,638.15 = 768,512.80/x
  3. Step 3: Cross multiply
    1,105,092.10x = 1,657,638.15 × 768,512.80
  4. Step 4: Simplify right side
    1,105,092.10x = 1,273,916,136,043.32
  5. Step 5: Solve for x
    x = 1,273,916,136,043.32/1,105,092.10
  6. Step 6: Final answer
    x = 1,152,769.20

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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.