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Finding the Fourth Proportional to 557,295.28, 769,302.96 and 376,252.48

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Solution

The fourth proportional to 557,295.28, 769,302.96 and 376,252.48 is: 519,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,295.28 : 769,302.96 = 376,252.48 : x
  2. Step 2: Convert to fraction form
    557,295.28/769,302.96 = 376,252.48/x
  3. Step 3: Cross multiply
    557,295.28x = 769,302.96 × 376,252.48
  4. Step 4: Simplify right side
    557,295.28x = 289,452,146,571.34
  5. Step 5: Solve for x
    x = 289,452,146,571.34/557,295.28
  6. Step 6: Final answer
    x = 519,387.40

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1.5x scale

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.