Home / 648,465.72-894,725.10-380,141.88

Finding the Fourth Proportional to 648,465.72, 894,725.10 and 380,141.88

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Solution

The fourth proportional to 648,465.72, 894,725.10 and 380,141.88 is: 524,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,465.72 : 894,725.10 = 380,141.88 : x
  2. Step 2: Convert to fraction form
    648,465.72/894,725.10 = 380,141.88/x
  3. Step 3: Cross multiply
    648,465.72x = 894,725.10 × 380,141.88
  4. Step 4: Simplify right side
    648,465.72x = 340,122,481,597.19
  5. Step 5: Solve for x
    x = 340,122,481,597.19/648,465.72
  6. Step 6: Final answer
    x = 524,503.41

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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.