Home / 786,969.03-1,178,009.97-426,243.97

Finding the Fourth Proportional to 786,969.03, 1,178,009.97 and 426,243.97

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Solution

The fourth proportional to 786,969.03, 1,178,009.97 and 426,243.97 is: 638,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,969.03 : 1,178,009.97 = 426,243.97 : x
  2. Step 2: Convert to fraction form
    786,969.03/1,178,009.97 = 426,243.97/x
  3. Step 3: Cross multiply
    786,969.03x = 1,178,009.97 × 426,243.97
  4. Step 4: Simplify right side
    786,969.03x = 502,119,646,312.38
  5. Step 5: Solve for x
    x = 502,119,646,312.38/786,969.03
  6. Step 6: Final answer
    x = 638,042.45

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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.