Home / 656,052.80-905,438.88-369,628.16

Finding the Fourth Proportional to 656,052.80, 905,438.88 and 369,628.16

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Solution

The fourth proportional to 656,052.80, 905,438.88 and 369,628.16 is: 510,135.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,052.80 : 905,438.88 = 369,628.16 : x
  2. Step 2: Convert to fraction form
    656,052.80/905,438.88 = 369,628.16/x
  3. Step 3: Cross multiply
    656,052.80x = 905,438.88 × 369,628.16
  4. Step 4: Simplify right side
    656,052.80x = 334,675,707,206.86
  5. Step 5: Solve for x
    x = 334,675,707,206.86/656,052.80
  6. Step 6: Final answer
    x = 510,135.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.