Home / 770,612.80-1,154,450.40-415,508.80

Finding the Fourth Proportional to 770,612.80, 1,154,450.40 and 415,508.80

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Solution

The fourth proportional to 770,612.80, 1,154,450.40 and 415,508.80 is: 622,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,612.80 : 1,154,450.40 = 415,508.80 : x
  2. Step 2: Convert to fraction form
    770,612.80/1,154,450.40 = 415,508.80/x
  3. Step 3: Cross multiply
    770,612.80x = 1,154,450.40 × 415,508.80
  4. Step 4: Simplify right side
    770,612.80x = 479,684,300,363.52
  5. Step 5: Solve for x
    x = 479,684,300,363.52/770,612.80
  6. Step 6: Final answer
    x = 622,471.23

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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.