Home / 1,277,316.72-1,916,123.28-424,464.48

Finding the Fourth Proportional to 1,277,316.72, 1,916,123.28 and 424,464.48

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Solution

The fourth proportional to 1,277,316.72, 1,916,123.28 and 424,464.48 is: 636,745.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,316.72 : 1,916,123.28 = 424,464.48 : x
  2. Step 2: Convert to fraction form
    1,277,316.72/1,916,123.28 = 424,464.48/x
  3. Step 3: Cross multiply
    1,277,316.72x = 1,916,123.28 × 424,464.48
  4. Step 4: Simplify right side
    1,277,316.72x = 813,326,271,661.09
  5. Step 5: Solve for x
    x = 813,326,271,661.09/1,277,316.72
  6. Step 6: Final answer
    x = 636,745.97

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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.