Home / 730,423.75-1,007,989.83-408,147.43

Finding the Fourth Proportional to 730,423.75, 1,007,989.83 and 408,147.43

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Solution

The fourth proportional to 730,423.75, 1,007,989.83 and 408,147.43 is: 563,246.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,423.75 : 1,007,989.83 = 408,147.43 : x
  2. Step 2: Convert to fraction form
    730,423.75/1,007,989.83 = 408,147.43/x
  3. Step 3: Cross multiply
    730,423.75x = 1,007,989.83 × 408,147.43
  4. Step 4: Simplify right side
    730,423.75x = 411,408,458,580.64
  5. Step 5: Solve for x
    x = 411,408,458,580.64/730,423.75
  6. Step 6: Final answer
    x = 563,246.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.