Home / 1,280,032.27-1,920,047.79-381,451.08

Finding the Fourth Proportional to 1,280,032.27, 1,920,047.79 and 381,451.08

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Solution

The fourth proportional to 1,280,032.27, 1,920,047.79 and 381,451.08 is: 572,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,032.27 : 1,920,047.79 = 381,451.08 : x
  2. Step 2: Convert to fraction form
    1,280,032.27/1,920,047.79 = 381,451.08/x
  3. Step 3: Cross multiply
    1,280,032.27x = 1,920,047.79 × 381,451.08
  4. Step 4: Simplify right side
    1,280,032.27x = 732,404,303,147.11
  5. Step 5: Solve for x
    x = 732,404,303,147.11/1,280,032.27
  6. Step 6: Final answer
    x = 572,176.44

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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.