Home / 768,589.98-1,152,926.93-319,356.28

Finding the Fourth Proportional to 768,589.98, 1,152,926.93 and 319,356.28

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Solution

The fourth proportional to 768,589.98, 1,152,926.93 and 319,356.28 is: 479,051.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,589.98 : 1,152,926.93 = 319,356.28 : x
  2. Step 2: Convert to fraction form
    768,589.98/1,152,926.93 = 319,356.28/x
  3. Step 3: Cross multiply
    768,589.98x = 1,152,926.93 × 319,356.28
  4. Step 4: Simplify right side
    768,589.98x = 368,194,455,476.62
  5. Step 5: Solve for x
    x = 368,194,455,476.62/768,589.98
  6. Step 6: Final answer
    x = 479,051.85

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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.