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Finding the Fourth Proportional to 768,302.60, 1,060,316.34 and 424,204.88

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Solution

The fourth proportional to 768,302.60, 1,060,316.34 and 424,204.88 is: 585,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,302.60 : 1,060,316.34 = 424,204.88 : x
  2. Step 2: Convert to fraction form
    768,302.60/1,060,316.34 = 424,204.88/x
  3. Step 3: Cross multiply
    768,302.60x = 1,060,316.34 × 424,204.88
  4. Step 4: Simplify right side
    768,302.60x = 449,791,365,771.74
  5. Step 5: Solve for x
    x = 449,791,365,771.74/768,302.60
  6. Step 6: Final answer
    x = 585,435.17

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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.