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Finding the Fourth Proportional to 557,280.41, 769,282.38 and 376,237.56

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Solution

The fourth proportional to 557,280.41, 769,282.38 and 376,237.56 is: 519,366.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,280.41 : 769,282.38 = 376,237.56 : x
  2. Step 2: Convert to fraction form
    557,280.41/769,282.38 = 376,237.56/x
  3. Step 3: Cross multiply
    557,280.41x = 769,282.38 × 376,237.56
  4. Step 4: Simplify right side
    557,280.41x = 289,432,925,602.19
  5. Step 5: Solve for x
    x = 289,432,925,602.19/557,280.41
  6. Step 6: Final answer
    x = 519,366.77

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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.