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Finding the Fourth Proportional to 522,483.78, 784,075.20 and 190,059.78

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Solution

The fourth proportional to 522,483.78, 784,075.20 and 190,059.78 is: 285,216.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,483.78 : 784,075.20 = 190,059.78 : x
  2. Step 2: Convert to fraction form
    522,483.78/784,075.20 = 190,059.78/x
  3. Step 3: Cross multiply
    522,483.78x = 784,075.20 × 190,059.78
  4. Step 4: Simplify right side
    522,483.78x = 149,021,160,015.46
  5. Step 5: Solve for x
    x = 149,021,160,015.46/522,483.78
  6. Step 6: Final answer
    x = 285,216.82

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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.