Home / 948,507.78-1,308,972.05-518,787.93

Finding the Fourth Proportional to 948,507.78, 1,308,972.05 and 518,787.93

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Solution

The fourth proportional to 948,507.78, 1,308,972.05 and 518,787.93 is: 715,944.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,507.78 : 1,308,972.05 = 518,787.93 : x
  2. Step 2: Convert to fraction form
    948,507.78/1,308,972.05 = 518,787.93/x
  3. Step 3: Cross multiply
    948,507.78x = 1,308,972.05 × 518,787.93
  4. Step 4: Simplify right side
    948,507.78x = 679,078,900,247.36
  5. Step 5: Solve for x
    x = 679,078,900,247.36/948,507.78
  6. Step 6: Final answer
    x = 715,944.47

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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.