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Finding the Fourth Proportional to 634,166.30, 875,130.54 and 347,676.60

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Solution

The fourth proportional to 634,166.30, 875,130.54 and 347,676.60 is: 479,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,166.30 : 875,130.54 = 347,676.60 : x
  2. Step 2: Convert to fraction form
    634,166.30/875,130.54 = 347,676.60/x
  3. Step 3: Cross multiply
    634,166.30x = 875,130.54 × 347,676.60
  4. Step 4: Simplify right side
    634,166.30x = 304,262,410,703.36
  5. Step 5: Solve for x
    x = 304,262,410,703.36/634,166.30
  6. Step 6: Final answer
    x = 479,783.32

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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.