Home / 857,212.74-1,285,728.90-351,827.16

Finding the Fourth Proportional to 857,212.74, 1,285,728.90 and 351,827.16

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Solution

The fourth proportional to 857,212.74, 1,285,728.90 and 351,827.16 is: 527,703.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,212.74 : 1,285,728.90 = 351,827.16 : x
  2. Step 2: Convert to fraction form
    857,212.74/1,285,728.90 = 351,827.16/x
  3. Step 3: Cross multiply
    857,212.74x = 1,285,728.90 × 351,827.16
  4. Step 4: Simplify right side
    857,212.74x = 452,354,347,416.92
  5. Step 5: Solve for x
    x = 452,354,347,416.92/857,212.74
  6. Step 6: Final answer
    x = 527,703.71

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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.