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Finding the Fourth Proportional to 554,928.40, 832,392.60 and 318,076.30

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Solution

The fourth proportional to 554,928.40, 832,392.60 and 318,076.30 is: 477,114.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,928.40 : 832,392.60 = 318,076.30 : x
  2. Step 2: Convert to fraction form
    554,928.40/832,392.60 = 318,076.30/x
  3. Step 3: Cross multiply
    554,928.40x = 832,392.60 × 318,076.30
  4. Step 4: Simplify right side
    554,928.40x = 264,764,358,355.38
  5. Step 5: Solve for x
    x = 264,764,358,355.38/554,928.40
  6. Step 6: Final answer
    x = 477,114.45

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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.