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Finding the Fourth Proportional to 427,006.67, 589,327.80 and 245,714.90

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Solution

The fourth proportional to 427,006.67, 589,327.80 and 245,714.90 is: 339,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,006.67 : 589,327.80 = 245,714.90 : x
  2. Step 2: Convert to fraction form
    427,006.67/589,327.80 = 245,714.90/x
  3. Step 3: Cross multiply
    427,006.67x = 589,327.80 × 245,714.90
  4. Step 4: Simplify right side
    427,006.67x = 144,806,621,444.22
  5. Step 5: Solve for x
    x = 144,806,621,444.22/427,006.67
  6. Step 6: Final answer
    x = 339,120.28

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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.