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Finding the Fourth Proportional to 734,407.56, 1,101,663.72 and 307,513.80

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Solution

The fourth proportional to 734,407.56, 1,101,663.72 and 307,513.80 is: 461,292.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,407.56 : 1,101,663.72 = 307,513.80 : x
  2. Step 2: Convert to fraction form
    734,407.56/1,101,663.72 = 307,513.80/x
  3. Step 3: Cross multiply
    734,407.56x = 1,101,663.72 × 307,513.80
  4. Step 4: Simplify right side
    734,407.56x = 338,776,796,859.34
  5. Step 5: Solve for x
    x = 338,776,796,859.34/734,407.56
  6. Step 6: Final answer
    x = 461,292.63

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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.