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Finding the Fourth Proportional to 671,760.51, 927,020.41 and 381,369.44

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Solution

The fourth proportional to 671,760.51, 927,020.41 and 381,369.44 is: 526,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,760.51 : 927,020.41 = 381,369.44 : x
  2. Step 2: Convert to fraction form
    671,760.51/927,020.41 = 381,369.44/x
  3. Step 3: Cross multiply
    671,760.51x = 927,020.41 × 381,369.44
  4. Step 4: Simplify right side
    671,760.51x = 353,537,249,041.75
  5. Step 5: Solve for x
    x = 353,537,249,041.75/671,760.51
  6. Step 6: Final answer
    x = 526,284.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.