Home / 847,061.12-1,270,322.23-278,311.12

Finding the Fourth Proportional to 847,061.12, 1,270,322.23 and 278,311.12

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Solution

The fourth proportional to 847,061.12, 1,270,322.23 and 278,311.12 is: 417,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,061.12 : 1,270,322.23 = 278,311.12 : x
  2. Step 2: Convert to fraction form
    847,061.12/1,270,322.23 = 278,311.12/x
  3. Step 3: Cross multiply
    847,061.12x = 1,270,322.23 × 278,311.12
  4. Step 4: Simplify right side
    847,061.12x = 353,544,802,592.20
  5. Step 5: Solve for x
    x = 353,544,802,592.20/847,061.12
  6. Step 6: Final answer
    x = 417,378.15

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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.