Home / 838,072.82-1,156,518.32-456,091.40

Finding the Fourth Proportional to 838,072.82, 1,156,518.32 and 456,091.40

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Solution

The fourth proportional to 838,072.82, 1,156,518.32 and 456,091.40 is: 629,394.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,072.82 : 1,156,518.32 = 456,091.40 : x
  2. Step 2: Convert to fraction form
    838,072.82/1,156,518.32 = 456,091.40/x
  3. Step 3: Cross multiply
    838,072.82x = 1,156,518.32 × 456,091.40
  4. Step 4: Simplify right side
    838,072.82x = 527,478,059,694.45
  5. Step 5: Solve for x
    x = 527,478,059,694.45/838,072.82
  6. Step 6: Final answer
    x = 629,394.07

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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.