Home / 472,621.80-708,284.70-303,623.40

Finding the Fourth Proportional to 472,621.80, 708,284.70 and 303,623.40

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Solution

The fourth proportional to 472,621.80, 708,284.70 and 303,623.40 is: 455,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,621.80 : 708,284.70 = 303,623.40 : x
  2. Step 2: Convert to fraction form
    472,621.80/708,284.70 = 303,623.40/x
  3. Step 3: Cross multiply
    472,621.80x = 708,284.70 × 303,623.40
  4. Step 4: Simplify right side
    472,621.80x = 215,051,808,781.98
  5. Step 5: Solve for x
    x = 215,051,808,781.98/472,621.80
  6. Step 6: Final answer
    x = 455,018.81

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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.