Home / 393,669.45-590,504.18-314,937.45

Finding the Fourth Proportional to 393,669.45, 590,504.18 and 314,937.45

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Solution

The fourth proportional to 393,669.45, 590,504.18 and 314,937.45 is: 472,406.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,669.45 : 590,504.18 = 314,937.45 : x
  2. Step 2: Convert to fraction form
    393,669.45/590,504.18 = 314,937.45/x
  3. Step 3: Cross multiply
    393,669.45x = 590,504.18 × 314,937.45
  4. Step 4: Simplify right side
    393,669.45x = 185,971,879,088.85
  5. Step 5: Solve for x
    x = 185,971,879,088.85/393,669.45
  6. Step 6: Final answer
    x = 472,406.18

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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.