Home / 940,408.79-1,298,161.38-634,898.97

Finding the Fourth Proportional to 940,408.79, 1,298,161.38 and 634,898.97

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Solution

The fourth proportional to 940,408.79, 1,298,161.38 and 634,898.97 is: 876,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,408.79 : 1,298,161.38 = 634,898.97 : x
  2. Step 2: Convert to fraction form
    940,408.79/1,298,161.38 = 634,898.97/x
  3. Step 3: Cross multiply
    940,408.79x = 1,298,161.38 × 634,898.97
  4. Step 4: Simplify right side
    940,408.79x = 824,201,323,055.78
  5. Step 5: Solve for x
    x = 824,201,323,055.78/940,408.79
  6. Step 6: Final answer
    x = 876,428.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.