Home / 1,385,271.20-1,912,322.18-804,381.18

Finding the Fourth Proportional to 1,385,271.20, 1,912,322.18 and 804,381.18

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Solution

The fourth proportional to 1,385,271.20, 1,912,322.18 and 804,381.18 is: 1,110,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,271.20 : 1,912,322.18 = 804,381.18 : x
  2. Step 2: Convert to fraction form
    1,385,271.20/1,912,322.18 = 804,381.18/x
  3. Step 3: Cross multiply
    1,385,271.20x = 1,912,322.18 × 804,381.18
  4. Step 4: Simplify right side
    1,385,271.20x = 1,538,235,962,003.67
  5. Step 5: Solve for x
    x = 1,538,235,962,003.67/1,385,271.20
  6. Step 6: Final answer
    x = 1,110,422.25

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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.