Home / 768,474.04-1,060,491.54-428,939.32

Finding the Fourth Proportional to 768,474.04, 1,060,491.54 and 428,939.32

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Solution

The fourth proportional to 768,474.04, 1,060,491.54 and 428,939.32 is: 591,934.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,474.04 : 1,060,491.54 = 428,939.32 : x
  2. Step 2: Convert to fraction form
    768,474.04/1,060,491.54 = 428,939.32/x
  3. Step 3: Cross multiply
    768,474.04x = 1,060,491.54 × 428,939.32
  4. Step 4: Simplify right side
    768,474.04x = 454,886,520,033.35
  5. Step 5: Solve for x
    x = 454,886,520,033.35/768,474.04
  6. Step 6: Final answer
    x = 591,934.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.