Home / 948,674.70-1,309,160.48-518,949.72

Finding the Fourth Proportional to 948,674.70, 1,309,160.48 and 518,949.72

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Solution

The fourth proportional to 948,674.70, 1,309,160.48 and 518,949.72 is: 716,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,674.70 : 1,309,160.48 = 518,949.72 : x
  2. Step 2: Convert to fraction form
    948,674.70/1,309,160.48 = 518,949.72/x
  3. Step 3: Cross multiply
    948,674.70x = 1,309,160.48 × 518,949.72
  4. Step 4: Simplify right side
    948,674.70x = 679,388,461,936.32
  5. Step 5: Solve for x
    x = 679,388,461,936.32/948,674.70
  6. Step 6: Final answer
    x = 716,144.81

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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.