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Finding the Fourth Proportional to 486,059.10, 670,491.99 and 284,816.22

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Solution

The fourth proportional to 486,059.10, 670,491.99 and 284,816.22 is: 392,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,059.10 : 670,491.99 = 284,816.22 : x
  2. Step 2: Convert to fraction form
    486,059.10/670,491.99 = 284,816.22/x
  3. Step 3: Cross multiply
    486,059.10x = 670,491.99 × 284,816.22
  4. Step 4: Simplify right side
    486,059.10x = 190,966,994,132.08
  5. Step 5: Solve for x
    x = 190,966,994,132.08/486,059.10
  6. Step 6: Final answer
    x = 392,888.42

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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.