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Finding the Fourth Proportional to 496,361.60, 744,542.40 and 357,430.40

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Solution

The fourth proportional to 496,361.60, 744,542.40 and 357,430.40 is: 536,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,361.60 : 744,542.40 = 357,430.40 : x
  2. Step 2: Convert to fraction form
    496,361.60/744,542.40 = 357,430.40/x
  3. Step 3: Cross multiply
    496,361.60x = 744,542.40 × 357,430.40
  4. Step 4: Simplify right side
    496,361.60x = 266,122,087,848.96
  5. Step 5: Solve for x
    x = 266,122,087,848.96/496,361.60
  6. Step 6: Final answer
    x = 536,145.60

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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.