Home / 706,631.20-1,060,400.40-391,314.40

Finding the Fourth Proportional to 706,631.20, 1,060,400.40 and 391,314.40

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Solution

The fourth proportional to 706,631.20, 1,060,400.40 and 391,314.40 is: 587,222.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,631.20 : 1,060,400.40 = 391,314.40 : x
  2. Step 2: Convert to fraction form
    706,631.20/1,060,400.40 = 391,314.40/x
  3. Step 3: Cross multiply
    706,631.20x = 1,060,400.40 × 391,314.40
  4. Step 4: Simplify right side
    706,631.20x = 414,949,946,285.76
  5. Step 5: Solve for x
    x = 414,949,946,285.76/706,631.20
  6. Step 6: Final answer
    x = 587,222.79

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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.