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Finding the Fourth Proportional to 670,663.38, 925,511.19 and 380,329.98

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Solution

The fourth proportional to 670,663.38, 925,511.19 and 380,329.98 is: 524,852.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,663.38 : 925,511.19 = 380,329.98 : x
  2. Step 2: Convert to fraction form
    670,663.38/925,511.19 = 380,329.98/x
  3. Step 3: Cross multiply
    670,663.38x = 925,511.19 × 380,329.98
  4. Step 4: Simplify right side
    670,663.38x = 351,999,652,382.48
  5. Step 5: Solve for x
    x = 351,999,652,382.48/670,663.38
  6. Step 6: Final answer
    x = 524,852.95

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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.