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Finding the Fourth Proportional to 673,810.54, 929,859.15 and 372,004.54

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Solution

The fourth proportional to 673,810.54, 929,859.15 and 372,004.54 is: 513,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,810.54 : 929,859.15 = 372,004.54 : x
  2. Step 2: Convert to fraction form
    673,810.54/929,859.15 = 372,004.54/x
  3. Step 3: Cross multiply
    673,810.54x = 929,859.15 × 372,004.54
  4. Step 4: Simplify right side
    673,810.54x = 345,911,825,360.54
  5. Step 5: Solve for x
    x = 345,911,825,360.54/673,810.54
  6. Step 6: Final answer
    x = 513,366.60

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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.