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Finding the Fourth Proportional to 673,189.16, 928,936.50 and 371,363.72

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Solution

The fourth proportional to 673,189.16, 928,936.50 and 371,363.72 is: 512,446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,189.16 : 928,936.50 = 371,363.72 : x
  2. Step 2: Convert to fraction form
    673,189.16/928,936.50 = 371,363.72/x
  3. Step 3: Cross multiply
    673,189.16x = 928,936.50 × 371,363.72
  4. Step 4: Simplify right side
    673,189.16x = 344,973,314,283.78
  5. Step 5: Solve for x
    x = 344,973,314,283.78/673,189.16
  6. Step 6: Final answer
    x = 512,446.33

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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.