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Finding the Fourth Proportional to 768,632.14, 1,060,722.84 and 424,491.28

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Solution

The fourth proportional to 768,632.14, 1,060,722.84 and 424,491.28 is: 585,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,632.14 : 1,060,722.84 = 424,491.28 : x
  2. Step 2: Convert to fraction form
    768,632.14/1,060,722.84 = 424,491.28/x
  3. Step 3: Cross multiply
    768,632.14x = 1,060,722.84 × 424,491.28
  4. Step 4: Simplify right side
    768,632.14x = 450,267,596,076.84
  5. Step 5: Solve for x
    x = 450,267,596,076.84/768,632.14
  6. Step 6: Final answer
    x = 585,803.76

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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.