Home / 654,839.40-903,717.90-368,378.04

Finding the Fourth Proportional to 654,839.40, 903,717.90 and 368,378.04

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Solution

The fourth proportional to 654,839.40, 903,717.90 and 368,378.04 is: 508,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,839.40 : 903,717.90 = 368,378.04 : x
  2. Step 2: Convert to fraction form
    654,839.40/903,717.90 = 368,378.04/x
  3. Step 3: Cross multiply
    654,839.40x = 903,717.90 × 368,378.04
  4. Step 4: Simplify right side
    654,839.40x = 332,909,828,714.92
  5. Step 5: Solve for x
    x = 332,909,828,714.92/654,839.40
  6. Step 6: Final answer
    x = 508,383.93

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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.