Home / 1,078,124.80-1,617,381.60-447,102.40

Finding the Fourth Proportional to 1,078,124.80, 1,617,381.60 and 447,102.40

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Solution

The fourth proportional to 1,078,124.80, 1,617,381.60 and 447,102.40 is: 670,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,124.80 : 1,617,381.60 = 447,102.40 : x
  2. Step 2: Convert to fraction form
    1,078,124.80/1,617,381.60 = 447,102.40/x
  3. Step 3: Cross multiply
    1,078,124.80x = 1,617,381.60 × 447,102.40
  4. Step 4: Simplify right side
    1,078,124.80x = 723,135,195,075.84
  5. Step 5: Solve for x
    x = 723,135,195,075.84/1,078,124.80
  6. Step 6: Final answer
    x = 670,734.22

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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.