Home / 749,609.64-1,123,631.10-328,530.60

Finding the Fourth Proportional to 749,609.64, 1,123,631.10 and 328,530.60

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Solution

The fourth proportional to 749,609.64, 1,123,631.10 and 328,530.60 is: 492,452.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,609.64 : 1,123,631.10 = 328,530.60 : x
  2. Step 2: Convert to fraction form
    749,609.64/1,123,631.10 = 328,530.60/x
  3. Step 3: Cross multiply
    749,609.64x = 1,123,631.10 × 328,530.60
  4. Step 4: Simplify right side
    749,609.64x = 369,147,199,461.66
  5. Step 5: Solve for x
    x = 369,147,199,461.66/749,609.64
  6. Step 6: Final answer
    x = 492,452.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.