Home / 711,166.40-1,066,749.60-445,227.20

Finding the Fourth Proportional to 711,166.40, 1,066,749.60 and 445,227.20

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Solution

The fourth proportional to 711,166.40, 1,066,749.60 and 445,227.20 is: 667,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,166.40 : 1,066,749.60 = 445,227.20 : x
  2. Step 2: Convert to fraction form
    711,166.40/1,066,749.60 = 445,227.20/x
  3. Step 3: Cross multiply
    711,166.40x = 1,066,749.60 × 445,227.20
  4. Step 4: Simplify right side
    711,166.40x = 474,945,937,509.12
  5. Step 5: Solve for x
    x = 474,945,937,509.12/711,166.40
  6. Step 6: Final answer
    x = 667,840.80

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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.