Home / 790,393.52-1,090,445.32-518,611.44

Finding the Fourth Proportional to 790,393.52, 1,090,445.32 and 518,611.44

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Solution

The fourth proportional to 790,393.52, 1,090,445.32 and 518,611.44 is: 715,488.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,393.52 : 1,090,445.32 = 518,611.44 : x
  2. Step 2: Convert to fraction form
    790,393.52/1,090,445.32 = 518,611.44/x
  3. Step 3: Cross multiply
    790,393.52x = 1,090,445.32 × 518,611.44
  4. Step 4: Simplify right side
    790,393.52x = 565,517,417,646.46
  5. Step 5: Solve for x
    x = 565,517,417,646.46/790,393.52
  6. Step 6: Final answer
    x = 715,488.43

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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.