Home / 718,970.87-1,078,456.66-245,660.87

Finding the Fourth Proportional to 718,970.87, 1,078,456.66 and 245,660.87

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Solution

The fourth proportional to 718,970.87, 1,078,456.66 and 245,660.87 is: 368,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,970.87 : 1,078,456.66 = 245,660.87 : x
  2. Step 2: Convert to fraction form
    718,970.87/1,078,456.66 = 245,660.87/x
  3. Step 3: Cross multiply
    718,970.87x = 1,078,456.66 × 245,660.87
  4. Step 4: Simplify right side
    718,970.87x = 264,934,601,352.89
  5. Step 5: Solve for x
    x = 264,934,601,352.89/718,970.87
  6. Step 6: Final answer
    x = 368,491.43

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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.