Home / 816,485.74-1,126,788.77-453,915.64

Finding the Fourth Proportional to 816,485.74, 1,126,788.77 and 453,915.64

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Solution

The fourth proportional to 816,485.74, 1,126,788.77 and 453,915.64 is: 626,424.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,485.74 : 1,126,788.77 = 453,915.64 : x
  2. Step 2: Convert to fraction form
    816,485.74/1,126,788.77 = 453,915.64/x
  3. Step 3: Cross multiply
    816,485.74x = 1,126,788.77 × 453,915.64
  4. Step 4: Simplify right side
    816,485.74x = 511,467,045,679.36
  5. Step 5: Solve for x
    x = 511,467,045,679.36/816,485.74
  6. Step 6: Final answer
    x = 626,424.96

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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.