Home / 1,280,233.80-1,920,636.70-481,522.20

Finding the Fourth Proportional to 1,280,233.80, 1,920,636.70 and 481,522.20

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Solution

The fourth proportional to 1,280,233.80, 1,920,636.70 and 481,522.20 is: 722,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,233.80 : 1,920,636.70 = 481,522.20 : x
  2. Step 2: Convert to fraction form
    1,280,233.80/1,920,636.70 = 481,522.20/x
  3. Step 3: Cross multiply
    1,280,233.80x = 1,920,636.70 × 481,522.20
  4. Step 4: Simplify right side
    1,280,233.80x = 924,829,209,184.74
  5. Step 5: Solve for x
    x = 924,829,209,184.74/1,280,233.80
  6. Step 6: Final answer
    x = 722,390.87

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1.5x scale

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.