Home / 948,107.68-1,308,388.44-518,387.68

Finding the Fourth Proportional to 948,107.68, 1,308,388.44 and 518,387.68

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Solution

The fourth proportional to 948,107.68, 1,308,388.44 and 518,387.68 is: 715,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,107.68 : 1,308,388.44 = 518,387.68 : x
  2. Step 2: Convert to fraction form
    948,107.68/1,308,388.44 = 518,387.68/x
  3. Step 3: Cross multiply
    948,107.68x = 1,308,388.44 × 518,387.68
  4. Step 4: Simplify right side
    948,107.68x = 678,252,447,950.42
  5. Step 5: Solve for x
    x = 678,252,447,950.42/948,107.68
  6. Step 6: Final answer
    x = 715,374.91

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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.