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Finding the Fourth Proportional to 673,555.16, 929,439.96 and 371,729.72

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Solution

The fourth proportional to 673,555.16, 929,439.96 and 371,729.72 is: 512,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,555.16 : 929,439.96 = 371,729.72 : x
  2. Step 2: Convert to fraction form
    673,555.16/929,439.96 = 371,729.72/x
  3. Step 3: Cross multiply
    673,555.16x = 929,439.96 × 371,729.72
  4. Step 4: Simplify right side
    673,555.16x = 345,500,456,087.61
  5. Step 5: Solve for x
    x = 345,500,456,087.61/673,555.16
  6. Step 6: Final answer
    x = 512,950.50

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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.