Home / 1,400,578.52-2,100,692.70-389,776.28

Finding the Fourth Proportional to 1,400,578.52, 2,100,692.70 and 389,776.28

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Solution

The fourth proportional to 1,400,578.52, 2,100,692.70 and 389,776.28 is: 584,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,578.52 : 2,100,692.70 = 389,776.28 : x
  2. Step 2: Convert to fraction form
    1,400,578.52/2,100,692.70 = 389,776.28/x
  3. Step 3: Cross multiply
    1,400,578.52x = 2,100,692.70 × 389,776.28
  4. Step 4: Simplify right side
    1,400,578.52x = 818,800,186,029.16
  5. Step 5: Solve for x
    x = 818,800,186,029.16/1,400,578.52
  6. Step 6: Final answer
    x = 584,615.70

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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.