Home / 704,630.20-1,056,167.70-389,313.40

Finding the Fourth Proportional to 704,630.20, 1,056,167.70 and 389,313.40

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Solution

The fourth proportional to 704,630.20, 1,056,167.70 and 389,313.40 is: 583,540.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,630.20 : 1,056,167.70 = 389,313.40 : x
  2. Step 2: Convert to fraction form
    704,630.20/1,056,167.70 = 389,313.40/x
  3. Step 3: Cross multiply
    704,630.20x = 1,056,167.70 × 389,313.40
  4. Step 4: Simplify right side
    704,630.20x = 411,180,238,257.18
  5. Step 5: Solve for x
    x = 411,180,238,257.18/704,630.20
  6. Step 6: Final answer
    x = 583,540.47

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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.