Home / 674,238.86-930,477.90-387,759.17

Finding the Fourth Proportional to 674,238.86, 930,477.90 and 387,759.17

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Solution

The fourth proportional to 674,238.86, 930,477.90 and 387,759.17 is: 535,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,238.86 : 930,477.90 = 387,759.17 : x
  2. Step 2: Convert to fraction form
    674,238.86/930,477.90 = 387,759.17/x
  3. Step 3: Cross multiply
    674,238.86x = 930,477.90 × 387,759.17
  4. Step 4: Simplify right side
    674,238.86x = 360,801,333,554.95
  5. Step 5: Solve for x
    x = 360,801,333,554.95/674,238.86
  6. Step 6: Final answer
    x = 535,123.91

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1.5x scale

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.