Home / 1,117,348.80-1,676,031.72-318,629.68

Finding the Fourth Proportional to 1,117,348.80, 1,676,031.72 and 318,629.68

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Solution

The fourth proportional to 1,117,348.80, 1,676,031.72 and 318,629.68 is: 477,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,348.80 : 1,676,031.72 = 318,629.68 : x
  2. Step 2: Convert to fraction form
    1,117,348.80/1,676,031.72 = 318,629.68/x
  3. Step 3: Cross multiply
    1,117,348.80x = 1,676,031.72 × 318,629.68
  4. Step 4: Simplify right side
    1,117,348.80x = 534,033,450,613.45
  5. Step 5: Solve for x
    x = 534,033,450,613.45/1,117,348.80
  6. Step 6: Final answer
    x = 477,946.95

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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.