Home / 1,190,690.57-1,643,090.81-646,824.65

Finding the Fourth Proportional to 1,190,690.57, 1,643,090.81 and 646,824.65

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Solution

The fourth proportional to 1,190,690.57, 1,643,090.81 and 646,824.65 is: 892,584.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,690.57 : 1,643,090.81 = 646,824.65 : x
  2. Step 2: Convert to fraction form
    1,190,690.57/1,643,090.81 = 646,824.65/x
  3. Step 3: Cross multiply
    1,190,690.57x = 1,643,090.81 × 646,824.65
  4. Step 4: Simplify right side
    1,190,690.57x = 1,062,791,626,646.89
  5. Step 5: Solve for x
    x = 1,062,791,626,646.89/1,190,690.57
  6. Step 6: Final answer
    x = 892,584.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.