Home / 980,384.76-1,470,679.40-270,412.92

Finding the Fourth Proportional to 980,384.76, 1,470,679.40 and 270,412.92

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Solution

The fourth proportional to 980,384.76, 1,470,679.40 and 270,412.92 is: 405,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,384.76 : 1,470,679.40 = 270,412.92 : x
  2. Step 2: Convert to fraction form
    980,384.76/1,470,679.40 = 270,412.92/x
  3. Step 3: Cross multiply
    980,384.76x = 1,470,679.40 × 270,412.92
  4. Step 4: Simplify right side
    980,384.76x = 397,690,710,937.85
  5. Step 5: Solve for x
    x = 397,690,710,937.85/980,384.76
  6. Step 6: Final answer
    x = 405,647.59

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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.