Home / 857,538.60-1,285,386.30-324,853.80

Finding the Fourth Proportional to 857,538.60, 1,285,386.30 and 324,853.80

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Solution

The fourth proportional to 857,538.60, 1,285,386.30 and 324,853.80 is: 486,931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,538.60 : 1,285,386.30 = 324,853.80 : x
  2. Step 2: Convert to fraction form
    857,538.60/1,285,386.30 = 324,853.80/x
  3. Step 3: Cross multiply
    857,538.60x = 1,285,386.30 × 324,853.80
  4. Step 4: Simplify right side
    857,538.60x = 417,562,624,022.94
  5. Step 5: Solve for x
    x = 417,562,624,022.94/857,538.60
  6. Step 6: Final answer
    x = 486,931.58

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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.