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Finding the Fourth Proportional to 555,255.81, 766,253.25 and 300,606.93

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Solution

The fourth proportional to 555,255.81, 766,253.25 and 300,606.93 is: 414,837.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,255.81 : 766,253.25 = 300,606.93 : x
  2. Step 2: Convert to fraction form
    555,255.81/766,253.25 = 300,606.93/x
  3. Step 3: Cross multiply
    555,255.81x = 766,253.25 × 300,606.93
  4. Step 4: Simplify right side
    555,255.81x = 230,341,037,085.02
  5. Step 5: Solve for x
    x = 230,341,037,085.02/555,255.81
  6. Step 6: Final answer
    x = 414,837.69

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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.