Home / 1,336,603.40-2,004,905.10-390,069.80

Finding the Fourth Proportional to 1,336,603.40, 2,004,905.10 and 390,069.80

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Solution

The fourth proportional to 1,336,603.40, 2,004,905.10 and 390,069.80 is: 585,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,603.40 : 2,004,905.10 = 390,069.80 : x
  2. Step 2: Convert to fraction form
    1,336,603.40/2,004,905.10 = 390,069.80/x
  3. Step 3: Cross multiply
    1,336,603.40x = 2,004,905.10 × 390,069.80
  4. Step 4: Simplify right side
    1,336,603.40x = 782,052,931,375.98
  5. Step 5: Solve for x
    x = 782,052,931,375.98/1,336,603.40
  6. Step 6: Final answer
    x = 585,104.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.