Home / 1,091,765.20-1,637,878.20-343,886.80

Finding the Fourth Proportional to 1,091,765.20, 1,637,878.20 and 343,886.80

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Solution

The fourth proportional to 1,091,765.20, 1,637,878.20 and 343,886.80 is: 515,902.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,765.20 : 1,637,878.20 = 343,886.80 : x
  2. Step 2: Convert to fraction form
    1,091,765.20/1,637,878.20 = 343,886.80/x
  3. Step 3: Cross multiply
    1,091,765.20x = 1,637,878.20 × 343,886.80
  4. Step 4: Simplify right side
    1,091,765.20x = 563,244,692,987.76
  5. Step 5: Solve for x
    x = 563,244,692,987.76/1,091,765.20
  6. Step 6: Final answer
    x = 515,902.77

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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.