Home / 1,281,340.40-1,768,286.66-708,417.48

Finding the Fourth Proportional to 1,281,340.40, 1,768,286.66 and 708,417.48

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Solution

The fourth proportional to 1,281,340.40, 1,768,286.66 and 708,417.48 is: 977,636.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,340.40 : 1,768,286.66 = 708,417.48 : x
  2. Step 2: Convert to fraction form
    1,281,340.40/1,768,286.66 = 708,417.48/x
  3. Step 3: Cross multiply
    1,281,340.40x = 1,768,286.66 × 708,417.48
  4. Step 4: Simplify right side
    1,281,340.40x = 1,252,685,179,594.82
  5. Step 5: Solve for x
    x = 1,252,685,179,594.82/1,281,340.40
  6. Step 6: Final answer
    x = 977,636.53

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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.