Home / 1,336,139.20-2,004,014.40-389,411.20

Finding the Fourth Proportional to 1,336,139.20, 2,004,014.40 and 389,411.20

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Solution

The fourth proportional to 1,336,139.20, 2,004,014.40 and 389,411.20 is: 584,060.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,139.20 : 2,004,014.40 = 389,411.20 : x
  2. Step 2: Convert to fraction form
    1,336,139.20/2,004,014.40 = 389,411.20/x
  3. Step 3: Cross multiply
    1,336,139.20x = 2,004,014.40 × 389,411.20
  4. Step 4: Simplify right side
    1,336,139.20x = 780,385,652,321.28
  5. Step 5: Solve for x
    x = 780,385,652,321.28/1,336,139.20
  6. Step 6: Final answer
    x = 584,060.14

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1.5x scale

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.