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Finding the Fourth Proportional to 555,298.94, 766,314.93 and 300,650.13

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Solution

The fourth proportional to 555,298.94, 766,314.93 and 300,650.13 is: 414,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,298.94 : 766,314.93 = 300,650.13 : x
  2. Step 2: Convert to fraction form
    555,298.94/766,314.93 = 300,650.13/x
  3. Step 3: Cross multiply
    555,298.94x = 766,314.93 × 300,650.13
  4. Step 4: Simplify right side
    555,298.94x = 230,392,682,761.72
  5. Step 5: Solve for x
    x = 230,392,682,761.72/555,298.94
  6. Step 6: Final answer
    x = 414,898.47

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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.