Home / 634,447.12-875,561.58-347,979.28

Finding the Fourth Proportional to 634,447.12, 875,561.58 and 347,979.28

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Solution

The fourth proportional to 634,447.12, 875,561.58 and 347,979.28 is: 480,224.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,447.12 : 875,561.58 = 347,979.28 : x
  2. Step 2: Convert to fraction form
    634,447.12/875,561.58 = 347,979.28/x
  3. Step 3: Cross multiply
    634,447.12x = 875,561.58 × 347,979.28
  4. Step 4: Simplify right side
    634,447.12x = 304,677,288,204.06
  5. Step 5: Solve for x
    x = 304,677,288,204.06/634,447.12
  6. Step 6: Final answer
    x = 480,224.87

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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.