Home / 707,830.12-1,062,181.50-287,109.64

Finding the Fourth Proportional to 707,830.12, 1,062,181.50 and 287,109.64

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Solution

The fourth proportional to 707,830.12, 1,062,181.50 and 287,109.64 is: 430,841.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,830.12 : 1,062,181.50 = 287,109.64 : x
  2. Step 2: Convert to fraction form
    707,830.12/1,062,181.50 = 287,109.64/x
  3. Step 3: Cross multiply
    707,830.12x = 1,062,181.50 × 287,109.64
  4. Step 4: Simplify right side
    707,830.12x = 304,962,548,079.66
  5. Step 5: Solve for x
    x = 304,962,548,079.66/707,830.12
  6. Step 6: Final answer
    x = 430,841.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.