Home / 720,342.21-1,080,555.59-271,066.91

Finding the Fourth Proportional to 720,342.21, 1,080,555.59 and 271,066.91

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Solution

The fourth proportional to 720,342.21, 1,080,555.59 and 271,066.91 is: 406,616.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,342.21 : 1,080,555.59 = 271,066.91 : x
  2. Step 2: Convert to fraction form
    720,342.21/1,080,555.59 = 271,066.91/x
  3. Step 3: Cross multiply
    720,342.21x = 1,080,555.59 × 271,066.91
  4. Step 4: Simplify right side
    720,342.21x = 292,902,860,139.42
  5. Step 5: Solve for x
    x = 292,902,860,139.42/720,342.21
  6. Step 6: Final answer
    x = 406,616.26

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1.5x scale

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.