Home / 1,423,679.40-1,964,677.59-779,099.85

Finding the Fourth Proportional to 1,423,679.40, 1,964,677.59 and 779,099.85

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Solution

The fourth proportional to 1,423,679.40, 1,964,677.59 and 779,099.85 is: 1,075,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,679.40 : 1,964,677.59 = 779,099.85 : x
  2. Step 2: Convert to fraction form
    1,423,679.40/1,964,677.59 = 779,099.85/x
  3. Step 3: Cross multiply
    1,423,679.40x = 1,964,677.59 × 779,099.85
  4. Step 4: Simplify right side
    1,423,679.40x = 1,530,680,015,667.36
  5. Step 5: Solve for x
    x = 1,530,680,015,667.36/1,423,679.40
  6. Step 6: Final answer
    x = 1,075,157.80

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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.