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Finding the Fourth Proportional to 634,347.08, 875,411 and 347,850.08

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Solution

The fourth proportional to 634,347.08, 875,411 and 347,850.08 is: 480,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,347.08 : 875,411 = 347,850.08 : x
  2. Step 2: Convert to fraction form
    634,347.08/875,411 = 347,850.08/x
  3. Step 3: Cross multiply
    634,347.08x = 875,411 × 347,850.08
  4. Step 4: Simplify right side
    634,347.08x = 304,511,786,382.88
  5. Step 5: Solve for x
    x = 304,511,786,382.88/634,347.08
  6. Step 6: Final answer
    x = 480,039.71

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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.