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Finding the Fourth Proportional to 768,383.84, 1,060,369.08 and 424,220.24

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Solution

The fourth proportional to 768,383.84, 1,060,369.08 and 424,220.24 is: 585,423.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,383.84 : 1,060,369.08 = 424,220.24 : x
  2. Step 2: Convert to fraction form
    768,383.84/1,060,369.08 = 424,220.24/x
  3. Step 3: Cross multiply
    768,383.84x = 1,060,369.08 × 424,220.24
  4. Step 4: Simplify right side
    768,383.84x = 449,830,025,606.18
  5. Step 5: Solve for x
    x = 449,830,025,606.18/768,383.84
  6. Step 6: Final answer
    x = 585,423.59

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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.