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Finding the Fourth Proportional to 768,383.34, 1,060,368.39 and 424,219.74

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Solution

The fourth proportional to 768,383.34, 1,060,368.39 and 424,219.74 is: 585,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,383.34 : 1,060,368.39 = 424,219.74 : x
  2. Step 2: Convert to fraction form
    768,383.34/1,060,368.39 = 424,219.74/x
  3. Step 3: Cross multiply
    768,383.34x = 1,060,368.39 × 424,219.74
  4. Step 4: Simplify right side
    768,383.34x = 449,829,202,710.02
  5. Step 5: Solve for x
    x = 449,829,202,710.02/768,383.34
  6. Step 6: Final answer
    x = 585,422.90

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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.