Home / 1,246,627.80-1,872,015.30-686,064.60

Finding the Fourth Proportional to 1,246,627.80, 1,872,015.30 and 686,064.60

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Solution

The fourth proportional to 1,246,627.80, 1,872,015.30 and 686,064.60 is: 1,030,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,627.80 : 1,872,015.30 = 686,064.60 : x
  2. Step 2: Convert to fraction form
    1,246,627.80/1,872,015.30 = 686,064.60/x
  3. Step 3: Cross multiply
    1,246,627.80x = 1,872,015.30 × 686,064.60
  4. Step 4: Simplify right side
    1,246,627.80x = 1,284,323,427,988.38
  5. Step 5: Solve for x
    x = 1,284,323,427,988.38/1,246,627.80
  6. Step 6: Final answer
    x = 1,030,238.08

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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.