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Finding the Fourth Proportional to 673,192.28, 929,005.28 and 371,386.28

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Solution

The fourth proportional to 673,192.28, 929,005.28 and 371,386.28 is: 512,513.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,192.28 : 929,005.28 = 371,386.28 : x
  2. Step 2: Convert to fraction form
    673,192.28/929,005.28 = 371,386.28/x
  3. Step 3: Cross multiply
    673,192.28x = 929,005.28 × 371,386.28
  4. Step 4: Simplify right side
    673,192.28x = 345,019,815,039.56
  5. Step 5: Solve for x
    x = 345,019,815,039.56/673,192.28
  6. Step 6: Final answer
    x = 512,513.03

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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.