Home / 1,086,720.40-1,630,080.60-637,656.40

Finding the Fourth Proportional to 1,086,720.40, 1,630,080.60 and 637,656.40

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Solution

The fourth proportional to 1,086,720.40, 1,630,080.60 and 637,656.40 is: 956,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,720.40 : 1,630,080.60 = 637,656.40 : x
  2. Step 2: Convert to fraction form
    1,086,720.40/1,630,080.60 = 637,656.40/x
  3. Step 3: Cross multiply
    1,086,720.40x = 1,630,080.60 × 637,656.40
  4. Step 4: Simplify right side
    1,086,720.40x = 1,039,431,327,105.84
  5. Step 5: Solve for x
    x = 1,039,431,327,105.84/1,086,720.40
  6. Step 6: Final answer
    x = 956,484.60

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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.