Home / 1,187,899.60-1,639,281.32-671,644.88

Finding the Fourth Proportional to 1,187,899.60, 1,639,281.32 and 671,644.88

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Solution

The fourth proportional to 1,187,899.60, 1,639,281.32 and 671,644.88 is: 926,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,899.60 : 1,639,281.32 = 671,644.88 : x
  2. Step 2: Convert to fraction form
    1,187,899.60/1,639,281.32 = 671,644.88/x
  3. Step 3: Cross multiply
    1,187,899.60x = 1,639,281.32 × 671,644.88
  4. Step 4: Simplify right side
    1,187,899.60x = 1,101,014,905,457.64
  5. Step 5: Solve for x
    x = 1,101,014,905,457.64/1,187,899.60
  6. Step 6: Final answer
    x = 926,858.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.