Home / 947,378.46-1,307,382.60-511,795.98

Finding the Fourth Proportional to 947,378.46, 1,307,382.60 and 511,795.98

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Solution

The fourth proportional to 947,378.46, 1,307,382.60 and 511,795.98 is: 706,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,378.46 : 1,307,382.60 = 511,795.98 : x
  2. Step 2: Convert to fraction form
    947,378.46/1,307,382.60 = 511,795.98/x
  3. Step 3: Cross multiply
    947,378.46x = 1,307,382.60 × 511,795.98
  4. Step 4: Simplify right side
    947,378.46x = 669,113,159,001.95
  5. Step 5: Solve for x
    x = 669,113,159,001.95/947,378.46
  6. Step 6: Final answer
    x = 706,278.63

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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.