Home / 2,132,686.60-2,943,636.39-1,215,459.74

Finding the Fourth Proportional to 2,132,686.60, 2,943,636.39 and 1,215,459.74

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Solution

The fourth proportional to 2,132,686.60, 2,943,636.39 and 1,215,459.74 is: 1,677,635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132,686.60 : 2,943,636.39 = 1,215,459.74 : x
  2. Step 2: Convert to fraction form
    2,132,686.60/2,943,636.39 = 1,215,459.74/x
  3. Step 3: Cross multiply
    2,132,686.60x = 2,943,636.39 × 1,215,459.74
  4. Step 4: Simplify right side
    2,132,686.60x = 3,577,871,528,603.03
  5. Step 5: Solve for x
    x = 3,577,871,528,603.03/2,132,686.60
  6. Step 6: Final answer
    x = 1,677,635.87

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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.