Home / 856,423.71-1,285,432.61-436,014.27

Finding the Fourth Proportional to 856,423.71, 1,285,432.61 and 436,014.27

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Solution

The fourth proportional to 856,423.71, 1,285,432.61 and 436,014.27 is: 654,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,423.71 : 1,285,432.61 = 436,014.27 : x
  2. Step 2: Convert to fraction form
    856,423.71/1,285,432.61 = 436,014.27/x
  3. Step 3: Cross multiply
    856,423.71x = 1,285,432.61 × 436,014.27
  4. Step 4: Simplify right side
    856,423.71x = 560,466,958,903.27
  5. Step 5: Solve for x
    x = 560,466,958,903.27/856,423.71
  6. Step 6: Final answer
    x = 654,427.19

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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.