Home / 777,615.04-1,073,131.50-455,294.98

Finding the Fourth Proportional to 777,615.04, 1,073,131.50 and 455,294.98

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Solution

The fourth proportional to 777,615.04, 1,073,131.50 and 455,294.98 is: 628,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,615.04 : 1,073,131.50 = 455,294.98 : x
  2. Step 2: Convert to fraction form
    777,615.04/1,073,131.50 = 455,294.98/x
  3. Step 3: Cross multiply
    777,615.04x = 1,073,131.50 × 455,294.98
  4. Step 4: Simplify right side
    777,615.04x = 488,591,384,829.87
  5. Step 5: Solve for x
    x = 488,591,384,829.87/777,615.04
  6. Step 6: Final answer
    x = 628,320.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.