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Finding the Fourth Proportional to 523,528.40, 785,404.20 and 298,996.40

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Solution

The fourth proportional to 523,528.40, 785,404.20 and 298,996.40 is: 448,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,528.40 : 785,404.20 = 298,996.40 : x
  2. Step 2: Convert to fraction form
    523,528.40/785,404.20 = 298,996.40/x
  3. Step 3: Cross multiply
    523,528.40x = 785,404.20 × 298,996.40
  4. Step 4: Simplify right side
    523,528.40x = 234,833,028,344.88
  5. Step 5: Solve for x
    x = 234,833,028,344.88/523,528.40
  6. Step 6: Final answer
    x = 448,558.34

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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.