Home / 818,890.74-1,229,026.26-345,915.54

Finding the Fourth Proportional to 818,890.74, 1,229,026.26 and 345,915.54

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Solution

The fourth proportional to 818,890.74, 1,229,026.26 and 345,915.54 is: 519,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,890.74 : 1,229,026.26 = 345,915.54 : x
  2. Step 2: Convert to fraction form
    818,890.74/1,229,026.26 = 345,915.54/x
  3. Step 3: Cross multiply
    818,890.74x = 1,229,026.26 × 345,915.54
  4. Step 4: Simplify right side
    818,890.74x = 425,139,282,402.08
  5. Step 5: Solve for x
    x = 425,139,282,402.08/818,890.74
  6. Step 6: Final answer
    x = 519,164.84

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1.5x scale

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.