Home / 1,331,784.78-1,997,695.59-433,231.21

Finding the Fourth Proportional to 1,331,784.78, 1,997,695.59 and 433,231.21

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Solution

The fourth proportional to 1,331,784.78, 1,997,695.59 and 433,231.21 is: 649,852.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,784.78 : 1,997,695.59 = 433,231.21 : x
  2. Step 2: Convert to fraction form
    1,331,784.78/1,997,695.59 = 433,231.21/x
  3. Step 3: Cross multiply
    1,331,784.78x = 1,997,695.59 × 433,231.21
  4. Step 4: Simplify right side
    1,331,784.78x = 865,464,077,667.36
  5. Step 5: Solve for x
    x = 865,464,077,667.36/1,331,784.78
  6. Step 6: Final answer
    x = 649,852.81

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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.