Home / 1,485,258.04-2,228,004.78-420,306.76

Finding the Fourth Proportional to 1,485,258.04, 2,228,004.78 and 420,306.76

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Solution

The fourth proportional to 1,485,258.04, 2,228,004.78 and 420,306.76 is: 630,493.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,258.04 : 2,228,004.78 = 420,306.76 : x
  2. Step 2: Convert to fraction form
    1,485,258.04/2,228,004.78 = 420,306.76/x
  3. Step 3: Cross multiply
    1,485,258.04x = 2,228,004.78 × 420,306.76
  4. Step 4: Simplify right side
    1,485,258.04x = 936,445,470,346.31
  5. Step 5: Solve for x
    x = 936,445,470,346.31/1,485,258.04
  6. Step 6: Final answer
    x = 630,493.45

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1.5x scale

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.