Home / 1,092,140.20-1,638,210.30-997,661.80

Finding the Fourth Proportional to 1,092,140.20, 1,638,210.30 and 997,661.80

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Solution

The fourth proportional to 1,092,140.20, 1,638,210.30 and 997,661.80 is: 1,496,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,140.20 : 1,638,210.30 = 997,661.80 : x
  2. Step 2: Convert to fraction form
    1,092,140.20/1,638,210.30 = 997,661.80/x
  3. Step 3: Cross multiply
    1,092,140.20x = 1,638,210.30 × 997,661.80
  4. Step 4: Simplify right side
    1,092,140.20x = 1,634,379,836,676.54
  5. Step 5: Solve for x
    x = 1,634,379,836,676.54/1,092,140.20
  6. Step 6: Final answer
    x = 1,496,492.70

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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.