Home / 1,985,004.30-2,979,061.65-920,178.30

Finding the Fourth Proportional to 1,985,004.30, 2,979,061.65 and 920,178.30

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Solution

The fourth proportional to 1,985,004.30, 2,979,061.65 and 920,178.30 is: 1,380,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,004.30 : 2,979,061.65 = 920,178.30 : x
  2. Step 2: Convert to fraction form
    1,985,004.30/2,979,061.65 = 920,178.30/x
  3. Step 3: Cross multiply
    1,985,004.30x = 2,979,061.65 × 920,178.30
  4. Step 4: Simplify right side
    1,985,004.30x = 2,741,267,884,692.19
  5. Step 5: Solve for x
    x = 2,741,267,884,692.19/1,985,004.30
  6. Step 6: Final answer
    x = 1,380,988.39

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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.