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Finding the Fourth Proportional to 634,410.32, 875,495.04 and 347,911.52

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Solution

The fourth proportional to 634,410.32, 875,495.04 and 347,911.52 is: 480,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,410.32 : 875,495.04 = 347,911.52 : x
  2. Step 2: Convert to fraction form
    634,410.32/875,495.04 = 347,911.52/x
  3. Step 3: Cross multiply
    634,410.32x = 875,495.04 × 347,911.52
  4. Step 4: Simplify right side
    634,410.32x = 304,594,810,118.86
  5. Step 5: Solve for x
    x = 304,594,810,118.86/634,410.32
  6. Step 6: Final answer
    x = 480,122.72

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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.