Home / 913,625.48-1,260,787.89-505,718.57

Finding the Fourth Proportional to 913,625.48, 1,260,787.89 and 505,718.57

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Solution

The fourth proportional to 913,625.48, 1,260,787.89 and 505,718.57 is: 697,883.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,625.48 : 1,260,787.89 = 505,718.57 : x
  2. Step 2: Convert to fraction form
    913,625.48/1,260,787.89 = 505,718.57/x
  3. Step 3: Cross multiply
    913,625.48x = 1,260,787.89 × 505,718.57
  4. Step 4: Simplify right side
    913,625.48x = 637,603,842,500.18
  5. Step 5: Solve for x
    x = 637,603,842,500.18/913,625.48
  6. Step 6: Final answer
    x = 697,883.17

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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.