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Finding the Fourth Proportional to 673,555.80, 929,520.54 and 371,749.08

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Solution

The fourth proportional to 673,555.80, 929,520.54 and 371,749.08 is: 513,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,555.80 : 929,520.54 = 371,749.08 : x
  2. Step 2: Convert to fraction form
    673,555.80/929,520.54 = 371,749.08/x
  3. Step 3: Cross multiply
    673,555.80x = 929,520.54 × 371,749.08
  4. Step 4: Simplify right side
    673,555.80x = 345,548,405,586.10
  5. Step 5: Solve for x
    x = 345,548,405,586.10/673,555.80
  6. Step 6: Final answer
    x = 513,021.20

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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.