Home / 768,405.93-1,152,592.80-256,108.16

Finding the Fourth Proportional to 768,405.93, 1,152,592.80 and 256,108.16

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Solution

The fourth proportional to 768,405.93, 1,152,592.80 and 256,108.16 is: 384,156.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,405.93 : 1,152,592.80 = 256,108.16 : x
  2. Step 2: Convert to fraction form
    768,405.93/1,152,592.80 = 256,108.16/x
  3. Step 3: Cross multiply
    768,405.93x = 1,152,592.80 × 256,108.16
  4. Step 4: Simplify right side
    768,405.93x = 295,188,421,237.25
  5. Step 5: Solve for x
    x = 295,188,421,237.25/768,405.93
  6. Step 6: Final answer
    x = 384,156.88

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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.