Home / 711,421.72-1,067,134.40-290,697.59

Finding the Fourth Proportional to 711,421.72, 1,067,134.40 and 290,697.59

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Solution

The fourth proportional to 711,421.72, 1,067,134.40 and 290,697.59 is: 436,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,421.72 : 1,067,134.40 = 290,697.59 : x
  2. Step 2: Convert to fraction form
    711,421.72/1,067,134.40 = 290,697.59/x
  3. Step 3: Cross multiply
    711,421.72x = 1,067,134.40 × 290,697.59
  4. Step 4: Simplify right side
    711,421.72x = 310,213,400,590.56
  5. Step 5: Solve for x
    x = 310,213,400,590.56/711,421.72
  6. Step 6: Final answer
    x = 436,047.13

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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.