Home / 768,027.20-1,152,040.80-452,321.60

Finding the Fourth Proportional to 768,027.20, 1,152,040.80 and 452,321.60

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Solution

The fourth proportional to 768,027.20, 1,152,040.80 and 452,321.60 is: 678,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,027.20 : 1,152,040.80 = 452,321.60 : x
  2. Step 2: Convert to fraction form
    768,027.20/1,152,040.80 = 452,321.60/x
  3. Step 3: Cross multiply
    768,027.20x = 1,152,040.80 × 452,321.60
  4. Step 4: Simplify right side
    768,027.20x = 521,092,937,921.28
  5. Step 5: Solve for x
    x = 521,092,937,921.28/768,027.20
  6. Step 6: Final answer
    x = 678,482.40

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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.