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Finding the Fourth Proportional to 554,848.64, 831,607.68 and 318,354.56

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Solution

The fourth proportional to 554,848.64, 831,607.68 and 318,354.56 is: 477,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,848.64 : 831,607.68 = 318,354.56 : x
  2. Step 2: Convert to fraction form
    554,848.64/831,607.68 = 318,354.56/x
  3. Step 3: Cross multiply
    554,848.64x = 831,607.68 × 318,354.56
  4. Step 4: Simplify right side
    554,848.64x = 264,746,097,059.02
  5. Step 5: Solve for x
    x = 264,746,097,059.02/554,848.64
  6. Step 6: Final answer
    x = 477,150.12

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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.