Home / 809,658.68-1,117,427.52-470,126.96

Finding the Fourth Proportional to 809,658.68, 1,117,427.52 and 470,126.96

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Solution

The fourth proportional to 809,658.68, 1,117,427.52 and 470,126.96 is: 648,832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,658.68 : 1,117,427.52 = 470,126.96 : x
  2. Step 2: Convert to fraction form
    809,658.68/1,117,427.52 = 470,126.96/x
  3. Step 3: Cross multiply
    809,658.68x = 1,117,427.52 × 470,126.96
  4. Step 4: Simplify right side
    809,658.68x = 525,332,802,997.94
  5. Step 5: Solve for x
    x = 525,332,802,997.94/809,658.68
  6. Step 6: Final answer
    x = 648,832.42

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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.