Home / 1,284,585.72-1,927,308.76-420,060.51

Finding the Fourth Proportional to 1,284,585.72, 1,927,308.76 and 420,060.51

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Solution

The fourth proportional to 1,284,585.72, 1,927,308.76 and 420,060.51 is: 630,231.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,585.72 : 1,927,308.76 = 420,060.51 : x
  2. Step 2: Convert to fraction form
    1,284,585.72/1,927,308.76 = 420,060.51/x
  3. Step 3: Cross multiply
    1,284,585.72x = 1,927,308.76 × 420,060.51
  4. Step 4: Simplify right side
    1,284,585.72x = 809,586,300,653.07
  5. Step 5: Solve for x
    x = 809,586,300,653.07/1,284,585.72
  6. Step 6: Final answer
    x = 630,231.43

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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.