Home / 768,848.80-1,152,236.40-515,408.80

Finding the Fourth Proportional to 768,848.80, 1,152,236.40 and 515,408.80

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Solution

The fourth proportional to 768,848.80, 1,152,236.40 and 515,408.80 is: 772,418.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,848.80 : 1,152,236.40 = 515,408.80 : x
  2. Step 2: Convert to fraction form
    768,848.80/1,152,236.40 = 515,408.80/x
  3. Step 3: Cross multiply
    768,848.80x = 1,152,236.40 × 515,408.80
  4. Step 4: Simplify right side
    768,848.80x = 593,872,780,240.32
  5. Step 5: Solve for x
    x = 593,872,780,240.32/768,848.80
  6. Step 6: Final answer
    x = 772,418.17

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1.5x scale

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.