Home / 947,623.42-1,427,828.61-782,835.40

Finding the Fourth Proportional to 947,623.42, 1,427,828.61 and 782,835.40

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Solution

The fourth proportional to 947,623.42, 1,427,828.61 and 782,835.40 is: 1,179,534.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,623.42 : 1,427,828.61 = 782,835.40 : x
  2. Step 2: Convert to fraction form
    947,623.42/1,427,828.61 = 782,835.40/x
  3. Step 3: Cross multiply
    947,623.42x = 1,427,828.61 × 782,835.40
  4. Step 4: Simplify right side
    947,623.42x = 1,117,754,781,040.79
  5. Step 5: Solve for x
    x = 1,117,754,781,040.79/947,623.42
  6. Step 6: Final answer
    x = 1,179,534.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.