Home / 455,945.60-684,307.20-203,614.40

Finding the Fourth Proportional to 455,945.60, 684,307.20 and 203,614.40

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Solution

The fourth proportional to 455,945.60, 684,307.20 and 203,614.40 is: 305,595.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,945.60 : 684,307.20 = 203,614.40 : x
  2. Step 2: Convert to fraction form
    455,945.60/684,307.20 = 203,614.40/x
  3. Step 3: Cross multiply
    455,945.60x = 684,307.20 × 203,614.40
  4. Step 4: Simplify right side
    455,945.60x = 139,334,799,943.68
  5. Step 5: Solve for x
    x = 139,334,799,943.68/455,945.60
  6. Step 6: Final answer
    x = 305,595.23

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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.