Home / 648,464.72-894,723.72-380,140.88

Finding the Fourth Proportional to 648,464.72, 894,723.72 and 380,140.88

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Solution

The fourth proportional to 648,464.72, 894,723.72 and 380,140.88 is: 524,502.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,464.72 : 894,723.72 = 380,140.88 : x
  2. Step 2: Convert to fraction form
    648,464.72/894,723.72 = 380,140.88/x
  3. Step 3: Cross multiply
    648,464.72x = 894,723.72 × 380,140.88
  4. Step 4: Simplify right side
    648,464.72x = 340,121,062,277.67
  5. Step 5: Solve for x
    x = 340,121,062,277.67/648,464.72
  6. Step 6: Final answer
    x = 524,502.03

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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.