Home / 913,545-1,260,694.89-505,675.17

Finding the Fourth Proportional to 913,545, 1,260,694.89 and 505,675.17

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Solution

The fourth proportional to 913,545, 1,260,694.89 and 505,675.17 is: 697,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,545 : 1,260,694.89 = 505,675.17 : x
  2. Step 2: Convert to fraction form
    913,545/1,260,694.89 = 505,675.17/x
  3. Step 3: Cross multiply
    913,545x = 1,260,694.89 × 505,675.17
  4. Step 4: Simplify right side
    913,545x = 637,502,102,818.88
  5. Step 5: Solve for x
    x = 637,502,102,818.88/913,545
  6. Step 6: Final answer
    x = 697,833.28

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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.