Home / 389,312.40-582,802.20-231,459.60

Finding the Fourth Proportional to 389,312.40, 582,802.20 and 231,459.60

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Solution

The fourth proportional to 389,312.40, 582,802.20 and 231,459.60 is: 346,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,312.40 : 582,802.20 = 231,459.60 : x
  2. Step 2: Convert to fraction form
    389,312.40/582,802.20 = 231,459.60/x
  3. Step 3: Cross multiply
    389,312.40x = 582,802.20 × 231,459.60
  4. Step 4: Simplify right side
    389,312.40x = 134,895,164,091.12
  5. Step 5: Solve for x
    x = 134,895,164,091.12/389,312.40
  6. Step 6: Final answer
    x = 346,495.94

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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.