Home / 838,402.14-1,156,999.30-456,431.66

Finding the Fourth Proportional to 838,402.14, 1,156,999.30 and 456,431.66

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Solution

The fourth proportional to 838,402.14, 1,156,999.30 and 456,431.66 is: 629,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,402.14 : 1,156,999.30 = 456,431.66 : x
  2. Step 2: Convert to fraction form
    838,402.14/1,156,999.30 = 456,431.66/x
  3. Step 3: Cross multiply
    838,402.14x = 1,156,999.30 × 456,431.66
  4. Step 4: Simplify right side
    838,402.14x = 528,091,111,117.84
  5. Step 5: Solve for x
    x = 528,091,111,117.84/838,402.14
  6. Step 6: Final answer
    x = 629,878.06

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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.