Home / 816,310.35-1,126,460.05-453,721.75

Finding the Fourth Proportional to 816,310.35, 1,126,460.05 and 453,721.75

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Solution

The fourth proportional to 816,310.35, 1,126,460.05 and 453,721.75 is: 626,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,310.35 : 1,126,460.05 = 453,721.75 : x
  2. Step 2: Convert to fraction form
    816,310.35/1,126,460.05 = 453,721.75/x
  3. Step 3: Cross multiply
    816,310.35x = 1,126,460.05 × 453,721.75
  4. Step 4: Simplify right side
    816,310.35x = 511,099,421,240.63
  5. Step 5: Solve for x
    x = 511,099,421,240.63/816,310.35
  6. Step 6: Final answer
    x = 626,109.20

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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.