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Finding the Fourth Proportional to 557,722.04, 769,654.36 and 316,050.64

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Solution

The fourth proportional to 557,722.04, 769,654.36 and 316,050.64 is: 436,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,722.04 : 769,654.36 = 316,050.64 : x
  2. Step 2: Convert to fraction form
    557,722.04/769,654.36 = 316,050.64/x
  3. Step 3: Cross multiply
    557,722.04x = 769,654.36 × 316,050.64
  4. Step 4: Simplify right side
    557,722.04x = 243,249,753,056.79
  5. Step 5: Solve for x
    x = 243,249,753,056.79/557,722.04
  6. Step 6: Final answer
    x = 436,148.72

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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.