Home / 913,139.33-1,260,133.61-505,258.36

Finding the Fourth Proportional to 913,139.33, 1,260,133.61 and 505,258.36

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Solution

The fourth proportional to 913,139.33, 1,260,133.61 and 505,258.36 is: 697,257.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,139.33 : 1,260,133.61 = 505,258.36 : x
  2. Step 2: Convert to fraction form
    913,139.33/1,260,133.61 = 505,258.36/x
  3. Step 3: Cross multiply
    913,139.33x = 1,260,133.61 × 505,258.36
  4. Step 4: Simplify right side
    913,139.33x = 636,693,035,492.85
  5. Step 5: Solve for x
    x = 636,693,035,492.85/913,139.33
  6. Step 6: Final answer
    x = 697,257.27

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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.