Home / 420,230.56-629,868.03-369,530.23

Finding the Fourth Proportional to 420,230.56, 629,868.03 and 369,530.23

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Solution

The fourth proportional to 420,230.56, 629,868.03 and 369,530.23 is: 553,875.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,230.56 : 629,868.03 = 369,530.23 : x
  2. Step 2: Convert to fraction form
    420,230.56/629,868.03 = 369,530.23/x
  3. Step 3: Cross multiply
    420,230.56x = 629,868.03 × 369,530.23
  4. Step 4: Simplify right side
    420,230.56x = 232,755,274,846.21
  5. Step 5: Solve for x
    x = 232,755,274,846.21/420,230.56
  6. Step 6: Final answer
    x = 553,875.18

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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.