Home / 815,126.39-1,124,818.25-452,522.09

Finding the Fourth Proportional to 815,126.39, 1,124,818.25 and 452,522.09

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Solution

The fourth proportional to 815,126.39, 1,124,818.25 and 452,522.09 is: 624,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,126.39 : 1,124,818.25 = 452,522.09 : x
  2. Step 2: Convert to fraction form
    815,126.39/1,124,818.25 = 452,522.09/x
  3. Step 3: Cross multiply
    815,126.39x = 1,124,818.25 × 452,522.09
  4. Step 4: Simplify right side
    815,126.39x = 509,005,105,909.58
  5. Step 5: Solve for x
    x = 509,005,105,909.58/815,126.39
  6. Step 6: Final answer
    x = 624,449.30

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Double scale
Find fourth proportional to 815,127.39, 1,124,819.62 and 452,523.09
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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.