Home / 919,263.45-1,378,901.28-320,235.93

Finding the Fourth Proportional to 919,263.45, 1,378,901.28 and 320,235.93

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Solution

The fourth proportional to 919,263.45, 1,378,901.28 and 320,235.93 is: 480,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,263.45 : 1,378,901.28 = 320,235.93 : x
  2. Step 2: Convert to fraction form
    919,263.45/1,378,901.28 = 320,235.93/x
  3. Step 3: Cross multiply
    919,263.45x = 1,378,901.28 × 320,235.93
  4. Step 4: Simplify right side
    919,263.45x = 441,573,733,778.99
  5. Step 5: Solve for x
    x = 441,573,733,778.99/919,263.45
  6. Step 6: Final answer
    x = 480,356.02

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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.