Home / 939,969.72-1,292,170.43-808,667.71

Finding the Fourth Proportional to 939,969.72, 1,292,170.43 and 808,667.71

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Solution

The fourth proportional to 939,969.72, 1,292,170.43 and 808,667.71 is: 1,111,670.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,969.72 : 1,292,170.43 = 808,667.71 : x
  2. Step 2: Convert to fraction form
    939,969.72/1,292,170.43 = 808,667.71/x
  3. Step 3: Cross multiply
    939,969.72x = 1,292,170.43 × 808,667.71
  4. Step 4: Simplify right side
    939,969.72x = 1,044,936,501,349.06
  5. Step 5: Solve for x
    x = 1,044,936,501,349.06/939,969.72
  6. Step 6: Final answer
    x = 1,111,670.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.