Home / 1,186,180.20-1,779,416.10-387,244.80

Finding the Fourth Proportional to 1,186,180.20, 1,779,416.10 and 387,244.80

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Solution

The fourth proportional to 1,186,180.20, 1,779,416.10 and 387,244.80 is: 580,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,180.20 : 1,779,416.10 = 387,244.80 : x
  2. Step 2: Convert to fraction form
    1,186,180.20/1,779,416.10 = 387,244.80/x
  3. Step 3: Cross multiply
    1,186,180.20x = 1,779,416.10 × 387,244.80
  4. Step 4: Simplify right side
    1,186,180.20x = 689,069,631,761.28
  5. Step 5: Solve for x
    x = 689,069,631,761.28/1,186,180.20
  6. Step 6: Final answer
    x = 580,914.80

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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.