Home / 1,245,652.30-1,719,000.15-672,692.45

Finding the Fourth Proportional to 1,245,652.30, 1,719,000.15 and 672,692.45

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Solution

The fourth proportional to 1,245,652.30, 1,719,000.15 and 672,692.45 is: 928,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,652.30 : 1,719,000.15 = 672,692.45 : x
  2. Step 2: Convert to fraction form
    1,245,652.30/1,719,000.15 = 672,692.45/x
  3. Step 3: Cross multiply
    1,245,652.30x = 1,719,000.15 × 672,692.45
  4. Step 4: Simplify right side
    1,245,652.30x = 1,156,358,422,453.87
  5. Step 5: Solve for x
    x = 1,156,358,422,453.87/1,245,652.30
  6. Step 6: Final answer
    x = 928,315.57

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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.