Home / 768,710.52-1,150,408.58-480,420.18

Finding the Fourth Proportional to 768,710.52, 1,150,408.58 and 480,420.18

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Solution

The fourth proportional to 768,710.52, 1,150,408.58 and 480,420.18 is: 718,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,710.52 : 1,150,408.58 = 480,420.18 : x
  2. Step 2: Convert to fraction form
    768,710.52/1,150,408.58 = 480,420.18/x
  3. Step 3: Cross multiply
    768,710.52x = 1,150,408.58 × 480,420.18
  4. Step 4: Simplify right side
    768,710.52x = 552,679,494,675.04
  5. Step 5: Solve for x
    x = 552,679,494,675.04/768,710.52
  6. Step 6: Final answer
    x = 718,969.60

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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.