Home / 634,909.32-876,172.41-348,434.19

Finding the Fourth Proportional to 634,909.32, 876,172.41 and 348,434.19

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Solution

The fourth proportional to 634,909.32, 876,172.41 and 348,434.19 is: 480,837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,909.32 : 876,172.41 = 348,434.19 : x
  2. Step 2: Convert to fraction form
    634,909.32/876,172.41 = 348,434.19/x
  3. Step 3: Cross multiply
    634,909.32x = 876,172.41 × 348,434.19
  4. Step 4: Simplify right side
    634,909.32x = 305,288,423,978.70
  5. Step 5: Solve for x
    x = 305,288,423,978.70/634,909.32
  6. Step 6: Final answer
    x = 480,837.84

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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.