Home / 838,431.54-1,156,999.23-456,459.66

Finding the Fourth Proportional to 838,431.54, 1,156,999.23 and 456,459.66

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Solution

The fourth proportional to 838,431.54, 1,156,999.23 and 456,459.66 is: 629,894.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,431.54 : 1,156,999.23 = 456,459.66 : x
  2. Step 2: Convert to fraction form
    838,431.54/1,156,999.23 = 456,459.66/x
  3. Step 3: Cross multiply
    838,431.54x = 1,156,999.23 × 456,459.66
  4. Step 4: Simplify right side
    838,431.54x = 528,123,475,146.06
  5. Step 5: Solve for x
    x = 528,123,475,146.06/838,431.54
  6. Step 6: Final answer
    x = 629,894.57

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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.