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Finding the Fourth Proportional to 673,065, 928,895.31 and 371,259

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Solution

The fourth proportional to 673,065, 928,895.31 and 371,259 is: 512,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,065 : 928,895.31 = 371,259 : x
  2. Step 2: Convert to fraction form
    673,065/928,895.31 = 371,259/x
  3. Step 3: Cross multiply
    673,065x = 928,895.31 × 371,259
  4. Step 4: Simplify right side
    673,065x = 344,860,743,895.29
  5. Step 5: Solve for x
    x = 344,860,743,895.29/673,065
  6. Step 6: Final answer
    x = 512,373.61

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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.