Home / 1,245,652.69-1,719,000.69-672,692.80

Finding the Fourth Proportional to 1,245,652.69, 1,719,000.69 and 672,692.80

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Solution

The fourth proportional to 1,245,652.69, 1,719,000.69 and 672,692.80 is: 928,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,652.69 : 1,719,000.69 = 672,692.80 : x
  2. Step 2: Convert to fraction form
    1,245,652.69/1,719,000.69 = 672,692.80/x
  3. Step 3: Cross multiply
    1,245,652.69x = 1,719,000.69 × 672,692.80
  4. Step 4: Simplify right side
    1,245,652.69x = 1,156,359,387,358.03
  5. Step 5: Solve for x
    x = 1,156,359,387,358.03/1,245,652.69
  6. Step 6: Final answer
    x = 928,316.05

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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.