Home / 940,443.72-1,298,209.47-634,933.78

Finding the Fourth Proportional to 940,443.72, 1,298,209.47 and 634,933.78

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Solution

The fourth proportional to 940,443.72, 1,298,209.47 and 634,933.78 is: 876,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,443.72 : 1,298,209.47 = 634,933.78 : x
  2. Step 2: Convert to fraction form
    940,443.72/1,298,209.47 = 634,933.78/x
  3. Step 3: Cross multiply
    940,443.72x = 1,298,209.47 × 634,933.78
  4. Step 4: Simplify right side
    940,443.72x = 824,277,046,018.90
  5. Step 5: Solve for x
    x = 824,277,046,018.90/940,443.72
  6. Step 6: Final answer
    x = 876,476.74

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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.