Home / 1,284,584.72-1,927,307.26-420,059.51

Finding the Fourth Proportional to 1,284,584.72, 1,927,307.26 and 420,059.51

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Solution

The fourth proportional to 1,284,584.72, 1,927,307.26 and 420,059.51 is: 630,229.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,584.72 : 1,927,307.26 = 420,059.51 : x
  2. Step 2: Convert to fraction form
    1,284,584.72/1,927,307.26 = 420,059.51/x
  3. Step 3: Cross multiply
    1,284,584.72x = 1,927,307.26 × 420,059.51
  4. Step 4: Simplify right side
    1,284,584.72x = 809,583,742,204.89
  5. Step 5: Solve for x
    x = 809,583,742,204.89/1,284,584.72
  6. Step 6: Final answer
    x = 630,229.93

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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.