Home / 1,278,423.18-1,764,323.58-734,748.66

Finding the Fourth Proportional to 1,278,423.18, 1,764,323.58 and 734,748.66

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Solution

The fourth proportional to 1,278,423.18, 1,764,323.58 and 734,748.66 is: 1,014,010.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,423.18 : 1,764,323.58 = 734,748.66 : x
  2. Step 2: Convert to fraction form
    1,278,423.18/1,764,323.58 = 734,748.66/x
  3. Step 3: Cross multiply
    1,278,423.18x = 1,764,323.58 × 734,748.66
  4. Step 4: Simplify right side
    1,278,423.18x = 1,296,334,386,211.40
  5. Step 5: Solve for x
    x = 1,296,334,386,211.40/1,278,423.18
  6. Step 6: Final answer
    x = 1,014,010.39

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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.