Home / 472,629.80-708,296.70-303,631.40

Finding the Fourth Proportional to 472,629.80, 708,296.70 and 303,631.40

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Solution

The fourth proportional to 472,629.80, 708,296.70 and 303,631.40 is: 455,030.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,629.80 : 708,296.70 = 303,631.40 : x
  2. Step 2: Convert to fraction form
    472,629.80/708,296.70 = 303,631.40/x
  3. Step 3: Cross multiply
    472,629.80x = 708,296.70 × 303,631.40
  4. Step 4: Simplify right side
    472,629.80x = 215,061,118,636.38
  5. Step 5: Solve for x
    x = 215,061,118,636.38/472,629.80
  6. Step 6: Final answer
    x = 455,030.81

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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.