Home / 1,384,188.20-2,076,282.30-486,643.40

Finding the Fourth Proportional to 1,384,188.20, 2,076,282.30 and 486,643.40

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Solution

The fourth proportional to 1,384,188.20, 2,076,282.30 and 486,643.40 is: 729,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,188.20 : 2,076,282.30 = 486,643.40 : x
  2. Step 2: Convert to fraction form
    1,384,188.20/2,076,282.30 = 486,643.40/x
  3. Step 3: Cross multiply
    1,384,188.20x = 2,076,282.30 × 486,643.40
  4. Step 4: Simplify right side
    1,384,188.20x = 1,010,409,077,831.82
  5. Step 5: Solve for x
    x = 1,010,409,077,831.82/1,384,188.20
  6. Step 6: Final answer
    x = 729,965.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.