Home / 913,308.31-1,260,334.44-505,427.35

Finding the Fourth Proportional to 913,308.31, 1,260,334.44 and 505,427.35

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Solution

The fourth proportional to 913,308.31, 1,260,334.44 and 505,427.35 is: 697,472.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,308.31 : 1,260,334.44 = 505,427.35 : x
  2. Step 2: Convert to fraction form
    913,308.31/1,260,334.44 = 505,427.35/x
  3. Step 3: Cross multiply
    913,308.31x = 1,260,334.44 × 505,427.35
  4. Step 4: Simplify right side
    913,308.31x = 637,007,496,122.93
  5. Step 5: Solve for x
    x = 637,007,496,122.93/913,308.31
  6. Step 6: Final answer
    x = 697,472.57

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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.