Home / 948,509.28-1,308,974.12-518,789.43

Finding the Fourth Proportional to 948,509.28, 1,308,974.12 and 518,789.43

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Solution

The fourth proportional to 948,509.28, 1,308,974.12 and 518,789.43 is: 715,946.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,509.28 : 1,308,974.12 = 518,789.43 : x
  2. Step 2: Convert to fraction form
    948,509.28/1,308,974.12 = 518,789.43/x
  3. Step 3: Cross multiply
    948,509.28x = 1,308,974.12 × 518,789.43
  4. Step 4: Simplify right side
    948,509.28x = 679,081,937,599.55
  5. Step 5: Solve for x
    x = 679,081,937,599.55/948,509.28
  6. Step 6: Final answer
    x = 715,946.54

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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.