Home / 857,150.40-1,285,725.60-718,219.20

Finding the Fourth Proportional to 857,150.40, 1,285,725.60 and 718,219.20

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Solution

The fourth proportional to 857,150.40, 1,285,725.60 and 718,219.20 is: 1,077,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,150.40 : 1,285,725.60 = 718,219.20 : x
  2. Step 2: Convert to fraction form
    857,150.40/1,285,725.60 = 718,219.20/x
  3. Step 3: Cross multiply
    857,150.40x = 1,285,725.60 × 718,219.20
  4. Step 4: Simplify right side
    857,150.40x = 923,432,811,851.52
  5. Step 5: Solve for x
    x = 923,432,811,851.52/857,150.40
  6. Step 6: Final answer
    x = 1,077,328.80

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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.