Home / 847,287.12-1,270,315.20-397,776.72

Finding the Fourth Proportional to 847,287.12, 1,270,315.20 and 397,776.72

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Solution

The fourth proportional to 847,287.12, 1,270,315.20 and 397,776.72 is: 596,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,287.12 : 1,270,315.20 = 397,776.72 : x
  2. Step 2: Convert to fraction form
    847,287.12/1,270,315.20 = 397,776.72/x
  3. Step 3: Cross multiply
    847,287.12x = 1,270,315.20 × 397,776.72
  4. Step 4: Simplify right side
    847,287.12x = 505,301,813,622.14
  5. Step 5: Solve for x
    x = 505,301,813,622.14/847,287.12
  6. Step 6: Final answer
    x = 596,376.13

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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.