Home / 545,986.60-819,095.10-172,047.40

Finding the Fourth Proportional to 545,986.60, 819,095.10 and 172,047.40

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Solution

The fourth proportional to 545,986.60, 819,095.10 and 172,047.40 is: 258,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,986.60 : 819,095.10 = 172,047.40 : x
  2. Step 2: Convert to fraction form
    545,986.60/819,095.10 = 172,047.40/x
  3. Step 3: Cross multiply
    545,986.60x = 819,095.10 × 172,047.40
  4. Step 4: Simplify right side
    545,986.60x = 140,923,182,307.74
  5. Step 5: Solve for x
    x = 140,923,182,307.74/545,986.60
  6. Step 6: Final answer
    x = 258,107.40

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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.