Home / 1,277,339.48-1,913,840.31-770,836.18

Finding the Fourth Proportional to 1,277,339.48, 1,913,840.31 and 770,836.18

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Solution

The fourth proportional to 1,277,339.48, 1,913,840.31 and 770,836.18 is: 1,154,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,339.48 : 1,913,840.31 = 770,836.18 : x
  2. Step 2: Convert to fraction form
    1,277,339.48/1,913,840.31 = 770,836.18/x
  3. Step 3: Cross multiply
    1,277,339.48x = 1,913,840.31 × 770,836.18
  4. Step 4: Simplify right side
    1,277,339.48x = 1,475,257,348,905.82
  5. Step 5: Solve for x
    x = 1,475,257,348,905.82/1,277,339.48
  6. Step 6: Final answer
    x = 1,154,945.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.