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Finding the Fourth Proportional to 554,308.20, 831,462.30 and 549,059.40

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Solution

The fourth proportional to 554,308.20, 831,462.30 and 549,059.40 is: 823,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,308.20 : 831,462.30 = 549,059.40 : x
  2. Step 2: Convert to fraction form
    554,308.20/831,462.30 = 549,059.40/x
  3. Step 3: Cross multiply
    554,308.20x = 831,462.30 × 549,059.40
  4. Step 4: Simplify right side
    554,308.20x = 456,522,191,560.62
  5. Step 5: Solve for x
    x = 456,522,191,560.62/554,308.20
  6. Step 6: Final answer
    x = 823,589.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.