Home / 455,943.60-684,304.20-203,612.40

Finding the Fourth Proportional to 455,943.60, 684,304.20 and 203,612.40

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Solution

The fourth proportional to 455,943.60, 684,304.20 and 203,612.40 is: 305,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,943.60 : 684,304.20 = 203,612.40 : x
  2. Step 2: Convert to fraction form
    455,943.60/684,304.20 = 203,612.40/x
  3. Step 3: Cross multiply
    455,943.60x = 684,304.20 × 203,612.40
  4. Step 4: Simplify right side
    455,943.60x = 139,332,820,492.08
  5. Step 5: Solve for x
    x = 139,332,820,492.08/455,943.60
  6. Step 6: Final answer
    x = 305,592.23

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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.