Home / 854,540.90-1,281,811.35-355,840.10

Finding the Fourth Proportional to 854,540.90, 1,281,811.35 and 355,840.10

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Solution

The fourth proportional to 854,540.90, 1,281,811.35 and 355,840.10 is: 533,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,540.90 : 1,281,811.35 = 355,840.10 : x
  2. Step 2: Convert to fraction form
    854,540.90/1,281,811.35 = 355,840.10/x
  3. Step 3: Cross multiply
    854,540.90x = 1,281,811.35 × 355,840.10
  4. Step 4: Simplify right side
    854,540.90x = 456,119,878,965.14
  5. Step 5: Solve for x
    x = 456,119,878,965.14/854,540.90
  6. Step 6: Final answer
    x = 533,760.15

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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.