Home / 1,210,902.80-1,815,058.20-411,443.60

Finding the Fourth Proportional to 1,210,902.80, 1,815,058.20 and 411,443.60

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Solution

The fourth proportional to 1,210,902.80, 1,815,058.20 and 411,443.60 is: 616,725.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,902.80 : 1,815,058.20 = 411,443.60 : x
  2. Step 2: Convert to fraction form
    1,210,902.80/1,815,058.20 = 411,443.60/x
  3. Step 3: Cross multiply
    1,210,902.80x = 1,815,058.20 × 411,443.60
  4. Step 4: Simplify right side
    1,210,902.80x = 746,794,080,017.52
  5. Step 5: Solve for x
    x = 746,794,080,017.52/1,210,902.80
  6. Step 6: Final answer
    x = 616,725.04

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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.