Home / 1,288,340.40-1,932,510.60-446,977.20

Finding the Fourth Proportional to 1,288,340.40, 1,932,510.60 and 446,977.20

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Solution

The fourth proportional to 1,288,340.40, 1,932,510.60 and 446,977.20 is: 670,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,340.40 : 1,932,510.60 = 446,977.20 : x
  2. Step 2: Convert to fraction form
    1,288,340.40/1,932,510.60 = 446,977.20/x
  3. Step 3: Cross multiply
    1,288,340.40x = 1,932,510.60 × 446,977.20
  4. Step 4: Simplify right side
    1,288,340.40x = 863,788,176,958.32
  5. Step 5: Solve for x
    x = 863,788,176,958.32/1,288,340.40
  6. Step 6: Final answer
    x = 670,465.80

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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.