Home / 1,267,770.48-1,749,519.88-687,009.72

Finding the Fourth Proportional to 1,267,770.48, 1,749,519.88 and 687,009.72

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Solution

The fourth proportional to 1,267,770.48, 1,749,519.88 and 687,009.72 is: 948,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,770.48 : 1,749,519.88 = 687,009.72 : x
  2. Step 2: Convert to fraction form
    1,267,770.48/1,749,519.88 = 687,009.72/x
  3. Step 3: Cross multiply
    1,267,770.48x = 1,749,519.88 × 687,009.72
  4. Step 4: Simplify right side
    1,267,770.48x = 1,201,937,161,175.71
  5. Step 5: Solve for x
    x = 1,201,937,161,175.71/1,267,770.48
  6. Step 6: Final answer
    x = 948,071.58

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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.