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Finding the Fourth Proportional to 492,592.88, 679,454.20 and 339,637.52

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Solution

The fourth proportional to 492,592.88, 679,454.20 and 339,637.52 is: 468,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,592.88 : 679,454.20 = 339,637.52 : x
  2. Step 2: Convert to fraction form
    492,592.88/679,454.20 = 339,637.52/x
  3. Step 3: Cross multiply
    492,592.88x = 679,454.20 × 339,637.52
  4. Step 4: Simplify right side
    492,592.88x = 230,768,139,441.58
  5. Step 5: Solve for x
    x = 230,768,139,441.58/492,592.88
  6. Step 6: Final answer
    x = 468,476.40

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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.