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Finding the Fourth Proportional to 553,024.60, 829,179.78 and 303,639.64

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Solution

The fourth proportional to 553,024.60, 829,179.78 and 303,639.64 is: 455,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,024.60 : 829,179.78 = 303,639.64 : x
  2. Step 2: Convert to fraction form
    553,024.60/829,179.78 = 303,639.64/x
  3. Step 3: Cross multiply
    553,024.60x = 829,179.78 × 303,639.64
  4. Step 4: Simplify right side
    553,024.60x = 251,771,849,894.48
  5. Step 5: Solve for x
    x = 251,771,849,894.48/553,024.60
  6. Step 6: Final answer
    x = 455,263.38

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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.