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Finding the Fourth Proportional to 553,315.20, 828,660.60 and 553,315.20

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Solution

The fourth proportional to 553,315.20, 828,660.60 and 553,315.20 is: 828,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,315.20 : 828,660.60 = 553,315.20 : x
  2. Step 2: Convert to fraction form
    553,315.20/828,660.60 = 553,315.20/x
  3. Step 3: Cross multiply
    553,315.20x = 828,660.60 × 553,315.20
  4. Step 4: Simplify right side
    553,315.20x = 458,510,505,621.12
  5. Step 5: Solve for x
    x = 458,510,505,621.12/553,315.20
  6. Step 6: Final answer
    x = 828,660.60

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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.