Home / 1,660,025.20-2,490,037.80-1,208,628.40

Finding the Fourth Proportional to 1,660,025.20, 2,490,037.80 and 1,208,628.40

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Solution

The fourth proportional to 1,660,025.20, 2,490,037.80 and 1,208,628.40 is: 1,812,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,025.20 : 2,490,037.80 = 1,208,628.40 : x
  2. Step 2: Convert to fraction form
    1,660,025.20/2,490,037.80 = 1,208,628.40/x
  3. Step 3: Cross multiply
    1,660,025.20x = 2,490,037.80 × 1,208,628.40
  4. Step 4: Simplify right side
    1,660,025.20x = 3,009,530,402,153.52
  5. Step 5: Solve for x
    x = 3,009,530,402,153.52/1,660,025.20
  6. Step 6: Final answer
    x = 1,812,942.60

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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.