Home / 919,944.96-1,379,710.08-255,148.80

Finding the Fourth Proportional to 919,944.96, 1,379,710.08 and 255,148.80

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Solution

The fourth proportional to 919,944.96, 1,379,710.08 and 255,148.80 is: 382,665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,944.96 : 1,379,710.08 = 255,148.80 : x
  2. Step 2: Convert to fraction form
    919,944.96/1,379,710.08 = 255,148.80/x
  3. Step 3: Cross multiply
    919,944.96x = 1,379,710.08 × 255,148.80
  4. Step 4: Simplify right side
    919,944.96x = 352,031,371,259.90
  5. Step 5: Solve for x
    x = 352,031,371,259.90/919,944.96
  6. Step 6: Final answer
    x = 382,665.69

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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.