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Finding the Fourth Proportional to 540,419.55, 745,781.90 and 295,404.64

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Solution

The fourth proportional to 540,419.55, 745,781.90 and 295,404.64 is: 407,660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,419.55 : 745,781.90 = 295,404.64 : x
  2. Step 2: Convert to fraction form
    540,419.55/745,781.90 = 295,404.64/x
  3. Step 3: Cross multiply
    540,419.55x = 745,781.90 × 295,404.64
  4. Step 4: Simplify right side
    540,419.55x = 220,307,433,688.02
  5. Step 5: Solve for x
    x = 220,307,433,688.02/540,419.55
  6. Step 6: Final answer
    x = 407,660.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.