Home / 501,467.40-691,856.71-286,455.24

Finding the Fourth Proportional to 501,467.40, 691,856.71 and 286,455.24

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Solution

The fourth proportional to 501,467.40, 691,856.71 and 286,455.24 is: 395,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,467.40 : 691,856.71 = 286,455.24 : x
  2. Step 2: Convert to fraction form
    501,467.40/691,856.71 = 286,455.24/x
  3. Step 3: Cross multiply
    501,467.40x = 691,856.71 × 286,455.24
  4. Step 4: Simplify right side
    501,467.40x = 198,185,979,192.52
  5. Step 5: Solve for x
    x = 198,185,979,192.52/501,467.40
  6. Step 6: Final answer
    x = 395,212.09

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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.