Home / 1,008,021.80-1,510,866.30-408,686.60

Finding the Fourth Proportional to 1,008,021.80, 1,510,866.30 and 408,686.60

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Solution

The fourth proportional to 1,008,021.80, 1,510,866.30 and 408,686.60 is: 612,557.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,021.80 : 1,510,866.30 = 408,686.60 : x
  2. Step 2: Convert to fraction form
    1,008,021.80/1,510,866.30 = 408,686.60/x
  3. Step 3: Cross multiply
    1,008,021.80x = 1,510,866.30 × 408,686.60
  4. Step 4: Simplify right side
    1,008,021.80x = 617,470,811,201.58
  5. Step 5: Solve for x
    x = 617,470,811,201.58/1,008,021.80
  6. Step 6: Final answer
    x = 612,557.00

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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.