Home / 1,091,940.20-1,638,140.70-344,061.80

Finding the Fourth Proportional to 1,091,940.20, 1,638,140.70 and 344,061.80

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Solution

The fourth proportional to 1,091,940.20, 1,638,140.70 and 344,061.80 is: 516,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,940.20 : 1,638,140.70 = 344,061.80 : x
  2. Step 2: Convert to fraction form
    1,091,940.20/1,638,140.70 = 344,061.80/x
  3. Step 3: Cross multiply
    1,091,940.20x = 1,638,140.70 × 344,061.80
  4. Step 4: Simplify right side
    1,091,940.20x = 563,621,637,895.26
  5. Step 5: Solve for x
    x = 563,621,637,895.26/1,091,940.20
  6. Step 6: Final answer
    x = 516,165.30

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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.