Home / 1,078,677.20-1,618,015.80-717,870.80

Finding the Fourth Proportional to 1,078,677.20, 1,618,015.80 and 717,870.80

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Solution

The fourth proportional to 1,078,677.20, 1,618,015.80 and 717,870.80 is: 1,076,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,677.20 : 1,618,015.80 = 717,870.80 : x
  2. Step 2: Convert to fraction form
    1,078,677.20/1,618,015.80 = 717,870.80/x
  3. Step 3: Cross multiply
    1,078,677.20x = 1,618,015.80 × 717,870.80
  4. Step 4: Simplify right side
    1,078,677.20x = 1,161,526,296,758.64
  5. Step 5: Solve for x
    x = 1,161,526,296,758.64/1,078,677.20
  6. Step 6: Final answer
    x = 1,076,806.20

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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.