Home / 847,061.62-1,270,322.98-278,311.62

Finding the Fourth Proportional to 847,061.62, 1,270,322.98 and 278,311.62

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Solution

The fourth proportional to 847,061.62, 1,270,322.98 and 278,311.62 is: 417,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,061.62 : 1,270,322.98 = 278,311.62 : x
  2. Step 2: Convert to fraction form
    847,061.62/1,270,322.98 = 278,311.62/x
  3. Step 3: Cross multiply
    847,061.62x = 1,270,322.98 × 278,311.62
  4. Step 4: Simplify right side
    847,061.62x = 353,545,646,487.03
  5. Step 5: Solve for x
    x = 353,545,646,487.03/847,061.62
  6. Step 6: Final answer
    x = 417,378.90

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1.5x scale

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.