Home / 948,458.12-1,308,855.66-518,728.82

Finding the Fourth Proportional to 948,458.12, 1,308,855.66 and 518,728.82

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Solution

The fourth proportional to 948,458.12, 1,308,855.66 and 518,728.82 is: 715,836.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,458.12 : 1,308,855.66 = 518,728.82 : x
  2. Step 2: Convert to fraction form
    948,458.12/1,308,855.66 = 518,728.82/x
  3. Step 3: Cross multiply
    948,458.12x = 1,308,855.66 × 518,728.82
  4. Step 4: Simplify right side
    948,458.12x = 678,941,152,062.12
  5. Step 5: Solve for x
    x = 678,941,152,062.12/948,458.12
  6. Step 6: Final answer
    x = 715,836.72

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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.