Home / 1,335,868.20-2,003,607.90-389,140.20

Finding the Fourth Proportional to 1,335,868.20, 2,003,607.90 and 389,140.20

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Solution

The fourth proportional to 1,335,868.20, 2,003,607.90 and 389,140.20 is: 583,653.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,868.20 : 2,003,607.90 = 389,140.20 : x
  2. Step 2: Convert to fraction form
    1,335,868.20/2,003,607.90 = 389,140.20/x
  3. Step 3: Cross multiply
    1,335,868.20x = 2,003,607.90 × 389,140.20
  4. Step 4: Simplify right side
    1,335,868.20x = 779,684,378,927.58
  5. Step 5: Solve for x
    x = 779,684,378,927.58/1,335,868.20
  6. Step 6: Final answer
    x = 583,653.67

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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.