Home / 855,931.40-1,283,313.90-406,867.40

Finding the Fourth Proportional to 855,931.40, 1,283,313.90 and 406,867.40

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Solution

The fourth proportional to 855,931.40, 1,283,313.90 and 406,867.40 is: 610,023.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,931.40 : 1,283,313.90 = 406,867.40 : x
  2. Step 2: Convert to fraction form
    855,931.40/1,283,313.90 = 406,867.40/x
  3. Step 3: Cross multiply
    855,931.40x = 1,283,313.90 × 406,867.40
  4. Step 4: Simplify right side
    855,931.40x = 522,138,589,876.86
  5. Step 5: Solve for x
    x = 522,138,589,876.86/855,931.40
  6. Step 6: Final answer
    x = 610,023.88

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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.