Home / 940,442.72-1,298,208.09-634,932.78

Finding the Fourth Proportional to 940,442.72, 1,298,208.09 and 634,932.78

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Solution

The fourth proportional to 940,442.72, 1,298,208.09 and 634,932.78 is: 876,475.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,442.72 : 1,298,208.09 = 634,932.78 : x
  2. Step 2: Convert to fraction form
    940,442.72/1,298,208.09 = 634,932.78/x
  3. Step 3: Cross multiply
    940,442.72x = 1,298,208.09 × 634,932.78
  4. Step 4: Simplify right side
    940,442.72x = 824,274,871,602.19
  5. Step 5: Solve for x
    x = 824,274,871,602.19/940,442.72
  6. Step 6: Final answer
    x = 876,475.36

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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.