Home / 555,529.77-766,631.12-300,880.98

Finding the Fourth Proportional to 555,529.77, 766,631.12 and 300,880.98

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Solution

The fourth proportional to 555,529.77, 766,631.12 and 300,880.98 is: 415,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,529.77 : 766,631.12 = 300,880.98 : x
  2. Step 2: Convert to fraction form
    555,529.77/766,631.12 = 300,880.98/x
  3. Step 3: Cross multiply
    555,529.77x = 766,631.12 × 300,880.98
  4. Step 4: Simplify right side
    555,529.77x = 230,664,721,179.69
  5. Step 5: Solve for x
    x = 230,664,721,179.69/555,529.77
  6. Step 6: Final answer
    x = 415,215.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.