Home / 1,247,504.60-1,871,256.90-1,121,533.40

Finding the Fourth Proportional to 1,247,504.60, 1,871,256.90 and 1,121,533.40

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Solution

The fourth proportional to 1,247,504.60, 1,871,256.90 and 1,121,533.40 is: 1,682,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,504.60 : 1,871,256.90 = 1,121,533.40 : x
  2. Step 2: Convert to fraction form
    1,247,504.60/1,871,256.90 = 1,121,533.40/x
  3. Step 3: Cross multiply
    1,247,504.60x = 1,871,256.90 × 1,121,533.40
  4. Step 4: Simplify right side
    1,247,504.60x = 2,098,677,113,330.46
  5. Step 5: Solve for x
    x = 2,098,677,113,330.46/1,247,504.60
  6. Step 6: Final answer
    x = 1,682,300.10

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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.