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Finding the Fourth Proportional to 670,562.30, 925,347.80 and 380,193.39

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Solution

The fourth proportional to 670,562.30, 925,347.80 and 380,193.39 is: 524,650.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,562.30 : 925,347.80 = 380,193.39 : x
  2. Step 2: Convert to fraction form
    670,562.30/925,347.80 = 380,193.39/x
  3. Step 3: Cross multiply
    670,562.30x = 925,347.80 × 380,193.39
  4. Step 4: Simplify right side
    670,562.30x = 351,811,115,110.08
  5. Step 5: Solve for x
    x = 351,811,115,110.08/670,562.30
  6. Step 6: Final answer
    x = 524,650.91

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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.