Home / 685,816.26-946,434.05-379,897.32

Finding the Fourth Proportional to 685,816.26, 946,434.05 and 379,897.32

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Solution

The fourth proportional to 685,816.26, 946,434.05 and 379,897.32 is: 524,262.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,816.26 : 946,434.05 = 379,897.32 : x
  2. Step 2: Convert to fraction form
    685,816.26/946,434.05 = 379,897.32/x
  3. Step 3: Cross multiply
    685,816.26x = 946,434.05 × 379,897.32
  4. Step 4: Simplify right side
    685,816.26x = 359,547,757,252.26
  5. Step 5: Solve for x
    x = 359,547,757,252.26/685,816.26
  6. Step 6: Final answer
    x = 524,262.51

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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.