Home / 1,186,441.32-1,637,280.66-642,564.60

Finding the Fourth Proportional to 1,186,441.32, 1,637,280.66 and 642,564.60

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Solution

The fourth proportional to 1,186,441.32, 1,637,280.66 and 642,564.60 is: 886,734.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,441.32 : 1,637,280.66 = 642,564.60 : x
  2. Step 2: Convert to fraction form
    1,186,441.32/1,637,280.66 = 642,564.60/x
  3. Step 3: Cross multiply
    1,186,441.32x = 1,637,280.66 × 642,564.60
  4. Step 4: Simplify right side
    1,186,441.32x = 1,052,058,592,380.64
  5. Step 5: Solve for x
    x = 1,052,058,592,380.64/1,186,441.32
  6. Step 6: Final answer
    x = 886,734.62

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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.