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Finding the Fourth Proportional to 553,933.92, 830,568.36 and 254,038.80

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Solution

The fourth proportional to 553,933.92, 830,568.36 and 254,038.80 is: 380,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,933.92 : 830,568.36 = 254,038.80 : x
  2. Step 2: Convert to fraction form
    553,933.92/830,568.36 = 254,038.80/x
  3. Step 3: Cross multiply
    553,933.92x = 830,568.36 × 254,038.80
  4. Step 4: Simplify right side
    553,933.92x = 210,996,589,492.37
  5. Step 5: Solve for x
    x = 210,996,589,492.37/553,933.92
  6. Step 6: Final answer
    x = 380,905.70

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1.5x scale

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.