Home / 1,991,825.42-2,748,718.98-1,132,385.67

Finding the Fourth Proportional to 1,991,825.42, 2,748,718.98 and 1,132,385.67

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Solution

The fourth proportional to 1,991,825.42, 2,748,718.98 and 1,132,385.67 is: 1,562,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,825.42 : 2,748,718.98 = 1,132,385.67 : x
  2. Step 2: Convert to fraction form
    1,991,825.42/2,748,718.98 = 1,132,385.67/x
  3. Step 3: Cross multiply
    1,991,825.42x = 2,748,718.98 × 1,132,385.67
  4. Step 4: Simplify right side
    1,991,825.42x = 3,112,609,983,809.02
  5. Step 5: Solve for x
    x = 3,112,609,983,809.02/1,991,825.42
  6. Step 6: Final answer
    x = 1,562,692.17

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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.