Home / 711,420.98-1,067,133.28-290,696.86

Finding the Fourth Proportional to 711,420.98, 1,067,133.28 and 290,696.86

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Solution

The fourth proportional to 711,420.98, 1,067,133.28 and 290,696.86 is: 436,046.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,420.98 : 1,067,133.28 = 290,696.86 : x
  2. Step 2: Convert to fraction form
    711,420.98/1,067,133.28 = 290,696.86/x
  3. Step 3: Cross multiply
    711,420.98x = 1,067,133.28 × 290,696.86
  4. Step 4: Simplify right side
    711,420.98x = 310,212,293,697.50
  5. Step 5: Solve for x
    x = 310,212,293,697.50/711,420.98
  6. Step 6: Final answer
    x = 436,046.03

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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.