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Finding the Fourth Proportional to 670,487.14, 925,139.73 and 376,146.82

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Solution

The fourth proportional to 670,487.14, 925,139.73 and 376,146.82 is: 519,008.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,487.14 : 925,139.73 = 376,146.82 : x
  2. Step 2: Convert to fraction form
    670,487.14/925,139.73 = 376,146.82/x
  3. Step 3: Cross multiply
    670,487.14x = 925,139.73 × 376,146.82
  4. Step 4: Simplify right side
    670,487.14x = 347,988,367,495.16
  5. Step 5: Solve for x
    x = 347,988,367,495.16/670,487.14
  6. Step 6: Final answer
    x = 519,008.27

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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.