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Finding the Fourth Proportional to 553,216.80, 828,658.80 and 459,904.80

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Solution

The fourth proportional to 553,216.80, 828,658.80 and 459,904.80 is: 688,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,216.80 : 828,658.80 = 459,904.80 : x
  2. Step 2: Convert to fraction form
    553,216.80/828,658.80 = 459,904.80/x
  3. Step 3: Cross multiply
    553,216.80x = 828,658.80 × 459,904.80
  4. Step 4: Simplify right side
    553,216.80x = 381,104,159,682.24
  5. Step 5: Solve for x
    x = 381,104,159,682.24/553,216.80
  6. Step 6: Final answer
    x = 688,887.54

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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.