Home / 1,206,415.89-1,665,500.28-930,170.40

Finding the Fourth Proportional to 1,206,415.89, 1,665,500.28 and 930,170.40

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Solution

The fourth proportional to 1,206,415.89, 1,665,500.28 and 930,170.40 is: 1,284,133.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,415.89 : 1,665,500.28 = 930,170.40 : x
  2. Step 2: Convert to fraction form
    1,206,415.89/1,665,500.28 = 930,170.40/x
  3. Step 3: Cross multiply
    1,206,415.89x = 1,665,500.28 × 930,170.40
  4. Step 4: Simplify right side
    1,206,415.89x = 1,549,199,061,647.71
  5. Step 5: Solve for x
    x = 1,549,199,061,647.71/1,206,415.89
  6. Step 6: Final answer
    x = 1,284,133.50

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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.