Home / 785,480.04-1,178,312.33-280,112.87

Finding the Fourth Proportional to 785,480.04, 1,178,312.33 and 280,112.87

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Solution

The fourth proportional to 785,480.04, 1,178,312.33 and 280,112.87 is: 420,202.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,480.04 : 1,178,312.33 = 280,112.87 : x
  2. Step 2: Convert to fraction form
    785,480.04/1,178,312.33 = 280,112.87/x
  3. Step 3: Cross multiply
    785,480.04x = 1,178,312.33 × 280,112.87
  4. Step 4: Simplify right side
    785,480.04x = 330,060,452,158.75
  5. Step 5: Solve for x
    x = 330,060,452,158.75/785,480.04
  6. Step 6: Final answer
    x = 420,202.21

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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.