Home / 948,340.32-1,308,719.97-518,611.22

Finding the Fourth Proportional to 948,340.32, 1,308,719.97 and 518,611.22

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Solution

The fourth proportional to 948,340.32, 1,308,719.97 and 518,611.22 is: 715,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,340.32 : 1,308,719.97 = 518,611.22 : x
  2. Step 2: Convert to fraction form
    948,340.32/1,308,719.97 = 518,611.22/x
  3. Step 3: Cross multiply
    948,340.32x = 1,308,719.97 × 518,611.22
  4. Step 4: Simplify right side
    948,340.32x = 678,716,858,644.16
  5. Step 5: Solve for x
    x = 678,716,858,644.16/948,340.32
  6. Step 6: Final answer
    x = 715,689.13

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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.