Home / 634,868.32-876,119.76-348,390.72

Finding the Fourth Proportional to 634,868.32, 876,119.76 and 348,390.72

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Solution

The fourth proportional to 634,868.32, 876,119.76 and 348,390.72 is: 480,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,868.32 : 876,119.76 = 348,390.72 : x
  2. Step 2: Convert to fraction form
    634,868.32/876,119.76 = 348,390.72/x
  3. Step 3: Cross multiply
    634,868.32x = 876,119.76 × 348,390.72
  4. Step 4: Simplify right side
    634,868.32x = 305,231,993,992.63
  5. Step 5: Solve for x
    x = 305,231,993,992.63/634,868.32
  6. Step 6: Final answer
    x = 480,780.00

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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.