Home / 1,161,705.35-1,603,133.16-645,464

Finding the Fourth Proportional to 1,161,705.35, 1,603,133.16 and 645,464

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Solution

The fourth proportional to 1,161,705.35, 1,603,133.16 and 645,464 is: 890,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,705.35 : 1,603,133.16 = 645,464 : x
  2. Step 2: Convert to fraction form
    1,161,705.35/1,603,133.16 = 645,464/x
  3. Step 3: Cross multiply
    1,161,705.35x = 1,603,133.16 × 645,464
  4. Step 4: Simplify right side
    1,161,705.35x = 1,034,764,741,986.24
  5. Step 5: Solve for x
    x = 1,034,764,741,986.24/1,161,705.35
  6. Step 6: Final answer
    x = 890,729.08

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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.