Home / 654,806.28-903,756.66-409,905.02

Finding the Fourth Proportional to 654,806.28, 903,756.66 and 409,905.02

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Solution

The fourth proportional to 654,806.28, 903,756.66 and 409,905.02 is: 565,746.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,806.28 : 903,756.66 = 409,905.02 : x
  2. Step 2: Convert to fraction form
    654,806.28/903,756.66 = 409,905.02/x
  3. Step 3: Cross multiply
    654,806.28x = 903,756.66 × 409,905.02
  4. Step 4: Simplify right side
    654,806.28x = 370,454,391,792.43
  5. Step 5: Solve for x
    x = 370,454,391,792.43/654,806.28
  6. Step 6: Final answer
    x = 565,746.55

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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.