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Finding the Fourth Proportional to 634,956.56, 876,239.34 and 348,477.38

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Solution

The fourth proportional to 634,956.56, 876,239.34 and 348,477.38 is: 480,898.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,956.56 : 876,239.34 = 348,477.38 : x
  2. Step 2: Convert to fraction form
    634,956.56/876,239.34 = 348,477.38/x
  3. Step 3: Cross multiply
    634,956.56x = 876,239.34 × 348,477.38
  4. Step 4: Simplify right side
    634,956.56x = 305,349,589,456.13
  5. Step 5: Solve for x
    x = 305,349,589,456.13/634,956.56
  6. Step 6: Final answer
    x = 480,898.39

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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.