Home / 774,279.92-1,160,967.72-300,411.44

Finding the Fourth Proportional to 774,279.92, 1,160,967.72 and 300,411.44

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Solution

The fourth proportional to 774,279.92, 1,160,967.72 and 300,411.44 is: 450,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,279.92 : 1,160,967.72 = 300,411.44 : x
  2. Step 2: Convert to fraction form
    774,279.92/1,160,967.72 = 300,411.44/x
  3. Step 3: Cross multiply
    774,279.92x = 1,160,967.72 × 300,411.44
  4. Step 4: Simplify right side
    774,279.92x = 348,767,984,558.72
  5. Step 5: Solve for x
    x = 348,767,984,558.72/774,279.92
  6. Step 6: Final answer
    x = 450,441.73

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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.