Home / 1,281,942.16-1,769,115.68-709,018.63

Finding the Fourth Proportional to 1,281,942.16, 1,769,115.68 and 709,018.63

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Solution

The fourth proportional to 1,281,942.16, 1,769,115.68 and 709,018.63 is: 978,465.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,942.16 : 1,769,115.68 = 709,018.63 : x
  2. Step 2: Convert to fraction form
    1,281,942.16/1,769,115.68 = 709,018.63/x
  3. Step 3: Cross multiply
    1,281,942.16x = 1,769,115.68 × 709,018.63
  4. Step 4: Simplify right side
    1,281,942.16x = 1,254,335,972,200.03
  5. Step 5: Solve for x
    x = 1,254,335,972,200.03/1,281,942.16
  6. Step 6: Final answer
    x = 978,465.34

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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.