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Finding the Fourth Proportional to 651,681.04, 899,305.08 and 379,732

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Solution

The fourth proportional to 651,681.04, 899,305.08 and 379,732 is: 524,021.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,681.04 : 899,305.08 = 379,732 : x
  2. Step 2: Convert to fraction form
    651,681.04/899,305.08 = 379,732/x
  3. Step 3: Cross multiply
    651,681.04x = 899,305.08 × 379,732
  4. Step 4: Simplify right side
    651,681.04x = 341,494,916,638.56
  5. Step 5: Solve for x
    x = 341,494,916,638.56/651,681.04
  6. Step 6: Final answer
    x = 524,021.56

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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.