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Finding the Fourth Proportional to 673,565.16, 929,453.76 and 371,739.72

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Solution

The fourth proportional to 673,565.16, 929,453.76 and 371,739.72 is: 512,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,565.16 : 929,453.76 = 371,739.72 : x
  2. Step 2: Convert to fraction form
    673,565.16/929,453.76 = 371,739.72/x
  3. Step 3: Cross multiply
    673,565.16x = 929,453.76 × 371,739.72
  4. Step 4: Simplify right side
    673,565.16x = 345,514,880,495.35
  5. Step 5: Solve for x
    x = 345,514,880,495.35/673,565.16
  6. Step 6: Final answer
    x = 512,964.30

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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.