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Finding the Fourth Proportional to 673,963.08, 930,064.32 and 368,039.46

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Solution

The fourth proportional to 673,963.08, 930,064.32 and 368,039.46 is: 507,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,963.08 : 930,064.32 = 368,039.46 : x
  2. Step 2: Convert to fraction form
    673,963.08/930,064.32 = 368,039.46/x
  3. Step 3: Cross multiply
    673,963.08x = 930,064.32 × 368,039.46
  4. Step 4: Simplify right side
    673,963.08x = 342,300,368,354.20
  5. Step 5: Solve for x
    x = 342,300,368,354.20/673,963.08
  6. Step 6: Final answer
    x = 507,891.87

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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.