Home / 1,272,466.34-1,908,682.70-312,930.21

Finding the Fourth Proportional to 1,272,466.34, 1,908,682.70 and 312,930.21

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Solution

The fourth proportional to 1,272,466.34, 1,908,682.70 and 312,930.21 is: 469,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,466.34 : 1,908,682.70 = 312,930.21 : x
  2. Step 2: Convert to fraction form
    1,272,466.34/1,908,682.70 = 312,930.21/x
  3. Step 3: Cross multiply
    1,272,466.34x = 1,908,682.70 × 312,930.21
  4. Step 4: Simplify right side
    1,272,466.34x = 597,284,476,569.72
  5. Step 5: Solve for x
    x = 597,284,476,569.72/1,272,466.34
  6. Step 6: Final answer
    x = 469,391.18

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1.5x scale

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.