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Finding the Fourth Proportional to 634,830.32, 876,105.62 and 348,351.16

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Solution

The fourth proportional to 634,830.32, 876,105.62 and 348,351.16 is: 480,746.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,830.32 : 876,105.62 = 348,351.16 : x
  2. Step 2: Convert to fraction form
    634,830.32/876,105.62 = 348,351.16/x
  3. Step 3: Cross multiply
    634,830.32x = 876,105.62 × 348,351.16
  4. Step 4: Simplify right side
    634,830.32x = 305,192,409,009.52
  5. Step 5: Solve for x
    x = 305,192,409,009.52/634,830.32
  6. Step 6: Final answer
    x = 480,746.43

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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.