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Finding the Fourth Proportional to 553,353.20, 829,373.70 and 496,928.60

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Solution

The fourth proportional to 553,353.20, 829,373.70 and 496,928.60 is: 744,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,353.20 : 829,373.70 = 496,928.60 : x
  2. Step 2: Convert to fraction form
    553,353.20/829,373.70 = 496,928.60/x
  3. Step 3: Cross multiply
    553,353.20x = 829,373.70 × 496,928.60
  4. Step 4: Simplify right side
    553,353.20x = 412,139,511,617.82
  5. Step 5: Solve for x
    x = 412,139,511,617.82/553,353.20
  6. Step 6: Final answer
    x = 744,803.70

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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.