Home / 711,138.80-1,066,708.24-657,071.60

Finding the Fourth Proportional to 711,138.80, 1,066,708.24 and 657,071.60

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Solution

The fourth proportional to 711,138.80, 1,066,708.24 and 657,071.60 is: 985,607.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,138.80 : 1,066,708.24 = 657,071.60 : x
  2. Step 2: Convert to fraction form
    711,138.80/1,066,708.24 = 657,071.60/x
  3. Step 3: Cross multiply
    711,138.80x = 1,066,708.24 × 657,071.60
  4. Step 4: Simplify right side
    711,138.80x = 700,903,689,989.98
  5. Step 5: Solve for x
    x = 700,903,689,989.98/711,138.80
  6. Step 6: Final answer
    x = 985,607.44

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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.