Home / 535,015.07-802,785.28-215,154

Finding the Fourth Proportional to 535,015.07, 802,785.28 and 215,154

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Solution

The fourth proportional to 535,015.07, 802,785.28 and 215,154 is: 322,836.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,015.07 : 802,785.28 = 215,154 : x
  2. Step 2: Convert to fraction form
    535,015.07/802,785.28 = 215,154/x
  3. Step 3: Cross multiply
    535,015.07x = 802,785.28 × 215,154
  4. Step 4: Simplify right side
    535,015.07x = 172,722,463,595.24
  5. Step 5: Solve for x
    x = 172,722,463,595.24/535,015.07
  6. Step 6: Final answer
    x = 322,836.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.