Home / 688,220.69-1,031,762.48-303,695.73

Finding the Fourth Proportional to 688,220.69, 1,031,762.48 and 303,695.73

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Solution

The fourth proportional to 688,220.69, 1,031,762.48 and 303,695.73 is: 455,292.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,220.69 : 1,031,762.48 = 303,695.73 : x
  2. Step 2: Convert to fraction form
    688,220.69/1,031,762.48 = 303,695.73/x
  3. Step 3: Cross multiply
    688,220.69x = 1,031,762.48 × 303,695.73
  4. Step 4: Simplify right side
    688,220.69x = 313,341,858,031.73
  5. Step 5: Solve for x
    x = 313,341,858,031.73/688,220.69
  6. Step 6: Final answer
    x = 455,292.71

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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.