Home / 286,979.44-430,484.46-87,284.56

Finding the Fourth Proportional to 286,979.44, 430,484.46 and 87,284.56

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Solution

The fourth proportional to 286,979.44, 430,484.46 and 87,284.56 is: 130,931.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,979.44 : 430,484.46 = 87,284.56 : x
  2. Step 2: Convert to fraction form
    286,979.44/430,484.46 = 87,284.56/x
  3. Step 3: Cross multiply
    286,979.44x = 430,484.46 × 87,284.56
  4. Step 4: Simplify right side
    286,979.44x = 37,574,646,677.94
  5. Step 5: Solve for x
    x = 37,574,646,677.94/286,979.44
  6. Step 6: Final answer
    x = 130,931.49

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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.