Home / 521,681.16-782,495.88-305,662.26

Finding the Fourth Proportional to 521,681.16, 782,495.88 and 305,662.26

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Solution

The fourth proportional to 521,681.16, 782,495.88 and 305,662.26 is: 458,478.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,681.16 : 782,495.88 = 305,662.26 : x
  2. Step 2: Convert to fraction form
    521,681.16/782,495.88 = 305,662.26/x
  3. Step 3: Cross multiply
    521,681.16x = 782,495.88 × 305,662.26
  4. Step 4: Simplify right side
    521,681.16x = 239,179,459,121.49
  5. Step 5: Solve for x
    x = 239,179,459,121.49/521,681.16
  6. Step 6: Final answer
    x = 458,478.24

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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.