Home / 1,161,765.45-1,603,231.11-645,603.35

Finding the Fourth Proportional to 1,161,765.45, 1,603,231.11 and 645,603.35

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Solution

The fourth proportional to 1,161,765.45, 1,603,231.11 and 645,603.35 is: 890,929.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,765.45 : 1,603,231.11 = 645,603.35 : x
  2. Step 2: Convert to fraction form
    1,161,765.45/1,603,231.11 = 645,603.35/x
  3. Step 3: Cross multiply
    1,161,765.45x = 1,603,231.11 × 645,603.35
  4. Step 4: Simplify right side
    1,161,765.45x = 1,035,051,367,424.06
  5. Step 5: Solve for x
    x = 1,035,051,367,424.06/1,161,765.45
  6. Step 6: Final answer
    x = 890,929.72

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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.