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Finding the Fourth Proportional to 714,286.89, 985,650.66 and 423,848.30

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Solution

The fourth proportional to 714,286.89, 985,650.66 and 423,848.30 is: 584,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,286.89 : 985,650.66 = 423,848.30 : x
  2. Step 2: Convert to fraction form
    714,286.89/985,650.66 = 423,848.30/x
  3. Step 3: Cross multiply
    714,286.89x = 985,650.66 × 423,848.30
  4. Step 4: Simplify right side
    714,286.89x = 417,766,351,706.63
  5. Step 5: Solve for x
    x = 417,766,351,706.63/714,286.89
  6. Step 6: Final answer
    x = 584,871.93

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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.