Home / 1,639,131.60-2,458,697.40-1,607,638.80

Finding the Fourth Proportional to 1,639,131.60, 2,458,697.40 and 1,607,638.80

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Solution

The fourth proportional to 1,639,131.60, 2,458,697.40 and 1,607,638.80 is: 2,411,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,131.60 : 2,458,697.40 = 1,607,638.80 : x
  2. Step 2: Convert to fraction form
    1,639,131.60/2,458,697.40 = 1,607,638.80/x
  3. Step 3: Cross multiply
    1,639,131.60x = 2,458,697.40 × 1,607,638.80
  4. Step 4: Simplify right side
    1,639,131.60x = 3,952,697,337,699.12
  5. Step 5: Solve for x
    x = 3,952,697,337,699.12/1,639,131.60
  6. Step 6: Final answer
    x = 2,411,458.20

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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.