Home / 545,971.60-819,072.60-172,032.40

Finding the Fourth Proportional to 545,971.60, 819,072.60 and 172,032.40

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Solution

The fourth proportional to 545,971.60, 819,072.60 and 172,032.40 is: 258,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,971.60 : 819,072.60 = 172,032.40 : x
  2. Step 2: Convert to fraction form
    545,971.60/819,072.60 = 172,032.40/x
  3. Step 3: Cross multiply
    545,971.60x = 819,072.60 × 172,032.40
  4. Step 4: Simplify right side
    545,971.60x = 140,907,025,152.24
  5. Step 5: Solve for x
    x = 140,907,025,152.24/545,971.60
  6. Step 6: Final answer
    x = 258,084.90

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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.