Home / 847,288.12-1,270,316.70-397,777.72

Finding the Fourth Proportional to 847,288.12, 1,270,316.70 and 397,777.72

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Solution

The fourth proportional to 847,288.12, 1,270,316.70 and 397,777.72 is: 596,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,288.12 : 1,270,316.70 = 397,777.72 : x
  2. Step 2: Convert to fraction form
    847,288.12/1,270,316.70 = 397,777.72/x
  3. Step 3: Cross multiply
    847,288.12x = 1,270,316.70 × 397,777.72
  4. Step 4: Simplify right side
    847,288.12x = 505,303,680,603.92
  5. Step 5: Solve for x
    x = 505,303,680,603.92/847,288.12
  6. Step 6: Final answer
    x = 596,377.63

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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.