Home / 1,913,913.12-2,871,314.40-651,751.68

Finding the Fourth Proportional to 1,913,913.12, 2,871,314.40 and 651,751.68

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Solution

The fourth proportional to 1,913,913.12, 2,871,314.40 and 651,751.68 is: 977,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,913.12 : 2,871,314.40 = 651,751.68 : x
  2. Step 2: Convert to fraction form
    1,913,913.12/2,871,314.40 = 651,751.68/x
  3. Step 3: Cross multiply
    1,913,913.12x = 2,871,314.40 × 651,751.68
  4. Step 4: Simplify right side
    1,913,913.12x = 1,871,383,984,008.19
  5. Step 5: Solve for x
    x = 1,871,383,984,008.19/1,913,913.12
  6. Step 6: Final answer
    x = 977,778.96

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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.