Home / 440,427.60-608,042.28-289,962

Finding the Fourth Proportional to 440,427.60, 608,042.28 and 289,962

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Solution

The fourth proportional to 440,427.60, 608,042.28 and 289,962 is: 400,313.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,427.60 : 608,042.28 = 289,962 : x
  2. Step 2: Convert to fraction form
    440,427.60/608,042.28 = 289,962/x
  3. Step 3: Cross multiply
    440,427.60x = 608,042.28 × 289,962
  4. Step 4: Simplify right side
    440,427.60x = 176,309,155,593.36
  5. Step 5: Solve for x
    x = 176,309,155,593.36/440,427.60
  6. Step 6: Final answer
    x = 400,313.59

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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.