Home / 1,290,060.50-1,936,585.60-692,189.37

Finding the Fourth Proportional to 1,290,060.50, 1,936,585.60 and 692,189.37

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Solution

The fourth proportional to 1,290,060.50, 1,936,585.60 and 692,189.37 is: 1,039,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,060.50 : 1,936,585.60 = 692,189.37 : x
  2. Step 2: Convert to fraction form
    1,290,060.50/1,936,585.60 = 692,189.37/x
  3. Step 3: Cross multiply
    1,290,060.50x = 1,936,585.60 × 692,189.37
  4. Step 4: Simplify right side
    1,290,060.50x = 1,340,483,968,671.21
  5. Step 5: Solve for x
    x = 1,340,483,968,671.21/1,290,060.50
  6. Step 6: Final answer
    x = 1,039,086.13

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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.