Home / 1,377,012.80-2,065,519.20-430,673.60

Finding the Fourth Proportional to 1,377,012.80, 2,065,519.20 and 430,673.60

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Solution

The fourth proportional to 1,377,012.80, 2,065,519.20 and 430,673.60 is: 646,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,012.80 : 2,065,519.20 = 430,673.60 : x
  2. Step 2: Convert to fraction form
    1,377,012.80/2,065,519.20 = 430,673.60/x
  3. Step 3: Cross multiply
    1,377,012.80x = 2,065,519.20 × 430,673.60
  4. Step 4: Simplify right side
    1,377,012.80x = 889,564,589,733.12
  5. Step 5: Solve for x
    x = 889,564,589,733.12/1,377,012.80
  6. Step 6: Final answer
    x = 646,010.40

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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.