Home / 1,273,248-1,909,466.25-420,160.65

Finding the Fourth Proportional to 1,273,248, 1,909,466.25 and 420,160.65

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Solution

The fourth proportional to 1,273,248, 1,909,466.25 and 420,160.65 is: 630,107.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,248 : 1,909,466.25 = 420,160.65 : x
  2. Step 2: Convert to fraction form
    1,273,248/1,909,466.25 = 420,160.65/x
  3. Step 3: Cross multiply
    1,273,248x = 1,909,466.25 × 420,160.65
  4. Step 4: Simplify right side
    1,273,248x = 802,282,580,753.06
  5. Step 5: Solve for x
    x = 802,282,580,753.06/1,273,248
  6. Step 6: Final answer
    x = 630,107.08

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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.