Home / 1,203,200.81-1,660,254.61-686,921.87

Finding the Fourth Proportional to 1,203,200.81, 1,660,254.61 and 686,921.87

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Solution

The fourth proportional to 1,203,200.81, 1,660,254.61 and 686,921.87 is: 947,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,200.81 : 1,660,254.61 = 686,921.87 : x
  2. Step 2: Convert to fraction form
    1,203,200.81/1,660,254.61 = 686,921.87/x
  3. Step 3: Cross multiply
    1,203,200.81x = 1,660,254.61 × 686,921.87
  4. Step 4: Simplify right side
    1,203,200.81x = 1,140,465,203,810.65
  5. Step 5: Solve for x
    x = 1,140,465,203,810.65/1,203,200.81
  6. Step 6: Final answer
    x = 947,859.41

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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.