Home / 739,969.30-1,109,625.90-340,404.40

Finding the Fourth Proportional to 739,969.30, 1,109,625.90 and 340,404.40

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Solution

The fourth proportional to 739,969.30, 1,109,625.90 and 340,404.40 is: 510,455.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,969.30 : 1,109,625.90 = 340,404.40 : x
  2. Step 2: Convert to fraction form
    739,969.30/1,109,625.90 = 340,404.40/x
  3. Step 3: Cross multiply
    739,969.30x = 1,109,625.90 × 340,404.40
  4. Step 4: Simplify right side
    739,969.30x = 377,721,538,713.96
  5. Step 5: Solve for x
    x = 377,721,538,713.96/739,969.30
  6. Step 6: Final answer
    x = 510,455.69

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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.