Home / 1,213,729.51-1,674,000.27-778,188.46

Finding the Fourth Proportional to 1,213,729.51, 1,674,000.27 and 778,188.46

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Solution

The fourth proportional to 1,213,729.51, 1,674,000.27 and 778,188.46 is: 1,073,293.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,729.51 : 1,674,000.27 = 778,188.46 : x
  2. Step 2: Convert to fraction form
    1,213,729.51/1,674,000.27 = 778,188.46/x
  3. Step 3: Cross multiply
    1,213,729.51x = 1,674,000.27 × 778,188.46
  4. Step 4: Simplify right side
    1,213,729.51x = 1,302,687,692,150.88
  5. Step 5: Solve for x
    x = 1,302,687,692,150.88/1,213,729.51
  6. Step 6: Final answer
    x = 1,073,293.25

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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.