Home / 905,365.55-1,356,719.10-455,468.06

Finding the Fourth Proportional to 905,365.55, 1,356,719.10 and 455,468.06

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Solution

The fourth proportional to 905,365.55, 1,356,719.10 and 455,468.06 is: 682,533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,365.55 : 1,356,719.10 = 455,468.06 : x
  2. Step 2: Convert to fraction form
    905,365.55/1,356,719.10 = 455,468.06/x
  3. Step 3: Cross multiply
    905,365.55x = 1,356,719.10 × 455,468.06
  4. Step 4: Simplify right side
    905,365.55x = 617,942,209,658.35
  5. Step 5: Solve for x
    x = 617,942,209,658.35/905,365.55
  6. Step 6: Final answer
    x = 682,533.38

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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.