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Finding the Fourth Proportional to 496,359.60, 744,539.40 and 357,428.40

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Solution

The fourth proportional to 496,359.60, 744,539.40 and 357,428.40 is: 536,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,359.60 : 744,539.40 = 357,428.40 : x
  2. Step 2: Convert to fraction form
    496,359.60/744,539.40 = 357,428.40/x
  3. Step 3: Cross multiply
    496,359.60x = 744,539.40 × 357,428.40
  4. Step 4: Simplify right side
    496,359.60x = 266,119,526,478.96
  5. Step 5: Solve for x
    x = 266,119,526,478.96/496,359.60
  6. Step 6: Final answer
    x = 536,142.60

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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.