Home / 1,281,398.12-1,768,366.32-708,475.28

Finding the Fourth Proportional to 1,281,398.12, 1,768,366.32 and 708,475.28

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Solution

The fourth proportional to 1,281,398.12, 1,768,366.32 and 708,475.28 is: 977,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,398.12 : 1,768,366.32 = 708,475.28 : x
  2. Step 2: Convert to fraction form
    1,281,398.12/1,768,366.32 = 708,475.28/x
  3. Step 3: Cross multiply
    1,281,398.12x = 1,768,366.32 × 708,475.28
  4. Step 4: Simplify right side
    1,281,398.12x = 1,252,843,823,704.57
  5. Step 5: Solve for x
    x = 1,252,843,823,704.57/1,281,398.12
  6. Step 6: Final answer
    x = 977,716.30

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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.