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Finding the Fourth Proportional to 768,576.65, 1,060,644.27 and 424,412.11

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Solution

The fourth proportional to 768,576.65, 1,060,644.27 and 424,412.11 is: 585,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,576.65 : 1,060,644.27 = 424,412.11 : x
  2. Step 2: Convert to fraction form
    768,576.65/1,060,644.27 = 424,412.11/x
  3. Step 3: Cross multiply
    768,576.65x = 1,060,644.27 × 424,412.11
  4. Step 4: Simplify right side
    768,576.65x = 450,150,269,541.34
  5. Step 5: Solve for x
    x = 450,150,269,541.34/768,576.65
  6. Step 6: Final answer
    x = 585,693.40

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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.