Home / 646,428.24-892,097.28-359,930.16

Finding the Fourth Proportional to 646,428.24, 892,097.28 and 359,930.16

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Solution

The fourth proportional to 646,428.24, 892,097.28 and 359,930.16 is: 496,718.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,428.24 : 892,097.28 = 359,930.16 : x
  2. Step 2: Convert to fraction form
    646,428.24/892,097.28 = 359,930.16/x
  3. Step 3: Cross multiply
    646,428.24x = 892,097.28 × 359,930.16
  4. Step 4: Simplify right side
    646,428.24x = 321,092,716,725.97
  5. Step 5: Solve for x
    x = 321,092,716,725.97/646,428.24
  6. Step 6: Final answer
    x = 496,718.27

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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.