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Finding the Fourth Proportional to 634,812.30, 876,005.82 and 348,309.63

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Solution

The fourth proportional to 634,812.30, 876,005.82 and 348,309.63 is: 480,648.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,812.30 : 876,005.82 = 348,309.63 : x
  2. Step 2: Convert to fraction form
    634,812.30/876,005.82 = 348,309.63/x
  3. Step 3: Cross multiply
    634,812.30x = 876,005.82 × 348,309.63
  4. Step 4: Simplify right side
    634,812.30x = 305,121,263,042.05
  5. Step 5: Solve for x
    x = 305,121,263,042.05/634,812.30
  6. Step 6: Final answer
    x = 480,648.00

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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.