Home / 455,918.60-684,266.70-203,587.40

Finding the Fourth Proportional to 455,918.60, 684,266.70 and 203,587.40

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Solution

The fourth proportional to 455,918.60, 684,266.70 and 203,587.40 is: 305,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,918.60 : 684,266.70 = 203,587.40 : x
  2. Step 2: Convert to fraction form
    455,918.60/684,266.70 = 203,587.40/x
  3. Step 3: Cross multiply
    455,918.60x = 684,266.70 × 203,587.40
  4. Step 4: Simplify right side
    455,918.60x = 139,308,078,359.58
  5. Step 5: Solve for x
    x = 139,308,078,359.58/455,918.60
  6. Step 6: Final answer
    x = 305,554.72

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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.