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Finding the Fourth Proportional to 885,801.60, 1,328,313.60 and 353,145.60

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Solution

The fourth proportional to 885,801.60, 1,328,313.60 and 353,145.60 is: 529,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,801.60 : 1,328,313.60 = 353,145.60 : x
  2. Step 2: Convert to fraction form
    885,801.60/1,328,313.60 = 353,145.60/x
  3. Step 3: Cross multiply
    885,801.60x = 1,328,313.60 × 353,145.60
  4. Step 4: Simplify right side
    885,801.60x = 469,088,103,260.16
  5. Step 5: Solve for x
    x = 469,088,103,260.16/885,801.60
  6. Step 6: Final answer
    x = 529,563.40

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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.