Home / 1,186,512.32-1,637,377.08-642,635.48

Finding the Fourth Proportional to 1,186,512.32, 1,637,377.08 and 642,635.48

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Solution

The fourth proportional to 1,186,512.32, 1,637,377.08 and 642,635.48 is: 886,831.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,512.32 : 1,637,377.08 = 642,635.48 : x
  2. Step 2: Convert to fraction form
    1,186,512.32/1,637,377.08 = 642,635.48/x
  3. Step 3: Cross multiply
    1,186,512.32x = 1,637,377.08 × 642,635.48
  4. Step 4: Simplify right side
    1,186,512.32x = 1,052,236,605,746.80
  5. Step 5: Solve for x
    x = 1,052,236,605,746.80/1,186,512.32
  6. Step 6: Final answer
    x = 886,831.59

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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.