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Finding the Fourth Proportional to 648,203.52, 894,520.92 and 357,815.16

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Solution

The fourth proportional to 648,203.52, 894,520.92 and 357,815.16 is: 493,784.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,203.52 : 894,520.92 = 357,815.16 : x
  2. Step 2: Convert to fraction form
    648,203.52/894,520.92 = 357,815.16/x
  3. Step 3: Cross multiply
    648,203.52x = 894,520.92 × 357,815.16
  4. Step 4: Simplify right side
    648,203.52x = 320,073,146,113.15
  5. Step 5: Solve for x
    x = 320,073,146,113.15/648,203.52
  6. Step 6: Final answer
    x = 493,784.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.