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Finding the Fourth Proportional to 634,245, 875,284.56 and 347,776.08

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Solution

The fourth proportional to 634,245, 875,284.56 and 347,776.08 is: 479,945.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,245 : 875,284.56 = 347,776.08 : x
  2. Step 2: Convert to fraction form
    634,245/875,284.56 = 347,776.08/x
  3. Step 3: Cross multiply
    634,245x = 875,284.56 × 347,776.08
  4. Step 4: Simplify right side
    634,245x = 304,403,033,161.33
  5. Step 5: Solve for x
    x = 304,403,033,161.33/634,245
  6. Step 6: Final answer
    x = 479,945.50

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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.