Home / 769,887.20-1,154,830.80-692,904.80

Finding the Fourth Proportional to 769,887.20, 1,154,830.80 and 692,904.80

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Solution

The fourth proportional to 769,887.20, 1,154,830.80 and 692,904.80 is: 1,039,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,887.20 : 1,154,830.80 = 692,904.80 : x
  2. Step 2: Convert to fraction form
    769,887.20/1,154,830.80 = 692,904.80/x
  3. Step 3: Cross multiply
    769,887.20x = 1,154,830.80 × 692,904.80
  4. Step 4: Simplify right side
    769,887.20x = 800,187,804,507.84
  5. Step 5: Solve for x
    x = 800,187,804,507.84/769,887.20
  6. Step 6: Final answer
    x = 1,039,357.20

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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.