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Finding the Fourth Proportional to 499,523.70, 749,285.55 and 340,091.40

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Solution

The fourth proportional to 499,523.70, 749,285.55 and 340,091.40 is: 510,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,523.70 : 749,285.55 = 340,091.40 : x
  2. Step 2: Convert to fraction form
    499,523.70/749,285.55 = 340,091.40/x
  3. Step 3: Cross multiply
    499,523.70x = 749,285.55 × 340,091.40
  4. Step 4: Simplify right side
    499,523.70x = 254,825,571,699.27
  5. Step 5: Solve for x
    x = 254,825,571,699.27/499,523.70
  6. Step 6: Final answer
    x = 510,137.10

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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.