Home / 768,522.60-1,152,092.70-487,895.40

Finding the Fourth Proportional to 768,522.60, 1,152,092.70 and 487,895.40

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Solution

The fourth proportional to 768,522.60, 1,152,092.70 and 487,895.40 is: 731,404.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,522.60 : 1,152,092.70 = 487,895.40 : x
  2. Step 2: Convert to fraction form
    768,522.60/1,152,092.70 = 487,895.40/x
  3. Step 3: Cross multiply
    768,522.60x = 1,152,092.70 × 487,895.40
  4. Step 4: Simplify right side
    768,522.60x = 562,100,728,703.58
  5. Step 5: Solve for x
    x = 562,100,728,703.58/768,522.60
  6. Step 6: Final answer
    x = 731,404.29

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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.