Home / 767,203.20-1,152,014.40-451,900.80

Finding the Fourth Proportional to 767,203.20, 1,152,014.40 and 451,900.80

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Solution

The fourth proportional to 767,203.20, 1,152,014.40 and 451,900.80 is: 678,563.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,203.20 : 1,152,014.40 = 451,900.80 : x
  2. Step 2: Convert to fraction form
    767,203.20/1,152,014.40 = 451,900.80/x
  3. Step 3: Cross multiply
    767,203.20x = 1,152,014.40 × 451,900.80
  4. Step 4: Simplify right side
    767,203.20x = 520,596,228,971.52
  5. Step 5: Solve for x
    x = 520,596,228,971.52/767,203.20
  6. Step 6: Final answer
    x = 678,563.68

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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.