Home / 1,400,652.80-2,100,979.20-652,774.40

Finding the Fourth Proportional to 1,400,652.80, 2,100,979.20 and 652,774.40

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Solution

The fourth proportional to 1,400,652.80, 2,100,979.20 and 652,774.40 is: 979,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,652.80 : 2,100,979.20 = 652,774.40 : x
  2. Step 2: Convert to fraction form
    1,400,652.80/2,100,979.20 = 652,774.40/x
  3. Step 3: Cross multiply
    1,400,652.80x = 2,100,979.20 × 652,774.40
  4. Step 4: Simplify right side
    1,400,652.80x = 1,371,465,436,692.48
  5. Step 5: Solve for x
    x = 1,371,465,436,692.48/1,400,652.80
  6. Step 6: Final answer
    x = 979,161.60

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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.