Home / 458,541.90-687,812.85-369,968.40

Finding the Fourth Proportional to 458,541.90, 687,812.85 and 369,968.40

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Solution

The fourth proportional to 458,541.90, 687,812.85 and 369,968.40 is: 554,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,541.90 : 687,812.85 = 369,968.40 : x
  2. Step 2: Convert to fraction form
    458,541.90/687,812.85 = 369,968.40/x
  3. Step 3: Cross multiply
    458,541.90x = 687,812.85 × 369,968.40
  4. Step 4: Simplify right side
    458,541.90x = 254,469,019,613.94
  5. Step 5: Solve for x
    x = 254,469,019,613.94/458,541.90
  6. Step 6: Final answer
    x = 554,952.60

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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.