Home / 301,628.90-452,442.93-76,989.30

Finding the Fourth Proportional to 301,628.90, 452,442.93 and 76,989.30

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Solution

The fourth proportional to 301,628.90, 452,442.93 and 76,989.30 is: 115,483.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,628.90 : 452,442.93 = 76,989.30 : x
  2. Step 2: Convert to fraction form
    301,628.90/452,442.93 = 76,989.30/x
  3. Step 3: Cross multiply
    301,628.90x = 452,442.93 × 76,989.30
  4. Step 4: Simplify right side
    301,628.90x = 34,833,264,470.65
  5. Step 5: Solve for x
    x = 34,833,264,470.65/301,628.90
  6. Step 6: Final answer
    x = 115,483.84

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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.