Home / 1,206,220.80-1,810,022.40-458,803.20

Finding the Fourth Proportional to 1,206,220.80, 1,810,022.40 and 458,803.20

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Solution

The fourth proportional to 1,206,220.80, 1,810,022.40 and 458,803.20 is: 688,467.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,220.80 : 1,810,022.40 = 458,803.20 : x
  2. Step 2: Convert to fraction form
    1,206,220.80/1,810,022.40 = 458,803.20/x
  3. Step 3: Cross multiply
    1,206,220.80x = 1,810,022.40 × 458,803.20
  4. Step 4: Simplify right side
    1,206,220.80x = 830,444,069,191.68
  5. Step 5: Solve for x
    x = 830,444,069,191.68/1,206,220.80
  6. Step 6: Final answer
    x = 688,467.71

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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.