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Finding the Fourth Proportional to 553,261.60, 829,892.40 and 493,775.20

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Solution

The fourth proportional to 553,261.60, 829,892.40 and 493,775.20 is: 740,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,261.60 : 829,892.40 = 493,775.20 : x
  2. Step 2: Convert to fraction form
    553,261.60/829,892.40 = 493,775.20/x
  3. Step 3: Cross multiply
    553,261.60x = 829,892.40 × 493,775.20
  4. Step 4: Simplify right side
    553,261.60x = 409,780,285,788.48
  5. Step 5: Solve for x
    x = 409,780,285,788.48/553,261.60
  6. Step 6: Final answer
    x = 740,662.80

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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.