Home / 688,126.85-1,031,771.10-308,973.95

Finding the Fourth Proportional to 688,126.85, 1,031,771.10 and 308,973.95

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Solution

The fourth proportional to 688,126.85, 1,031,771.10 and 308,973.95 is: 463,272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,126.85 : 1,031,771.10 = 308,973.95 : x
  2. Step 2: Convert to fraction form
    688,126.85/1,031,771.10 = 308,973.95/x
  3. Step 3: Cross multiply
    688,126.85x = 1,031,771.10 × 308,973.95
  4. Step 4: Simplify right side
    688,126.85x = 318,790,392,262.85
  5. Step 5: Solve for x
    x = 318,790,392,262.85/688,126.85
  6. Step 6: Final answer
    x = 463,272.71

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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.