Home / 948,195-1,308,508.98-518,475.42

Finding the Fourth Proportional to 948,195, 1,308,508.98 and 518,475.42

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Solution

The fourth proportional to 948,195, 1,308,508.98 and 518,475.42 is: 715,496.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,195 : 1,308,508.98 = 518,475.42 : x
  2. Step 2: Convert to fraction form
    948,195/1,308,508.98 = 518,475.42/x
  3. Step 3: Cross multiply
    948,195x = 1,308,508.98 × 518,475.42
  4. Step 4: Simplify right side
    948,195x = 678,429,742,979.27
  5. Step 5: Solve for x
    x = 678,429,742,979.27/948,195
  6. Step 6: Final answer
    x = 715,496.01

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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.