Home / 1,186,749.32-1,637,712.57-642,887.36

Finding the Fourth Proportional to 1,186,749.32, 1,637,712.57 and 642,887.36

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Solution

The fourth proportional to 1,186,749.32, 1,637,712.57 and 642,887.36 is: 887,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,749.32 : 1,637,712.57 = 642,887.36 : x
  2. Step 2: Convert to fraction form
    1,186,749.32/1,637,712.57 = 642,887.36/x
  3. Step 3: Cross multiply
    1,186,749.32x = 1,637,712.57 × 642,887.36
  4. Step 4: Simplify right side
    1,186,749.32x = 1,052,864,710,566.12
  5. Step 5: Solve for x
    x = 1,052,864,710,566.12/1,186,749.32
  6. Step 6: Final answer
    x = 887,183.75

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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.