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Finding the Fourth Proportional to 560,305.82, 773,220.40 and 305,655.19

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Solution

The fourth proportional to 560,305.82, 773,220.40 and 305,655.19 is: 421,803.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,305.82 : 773,220.40 = 305,655.19 : x
  2. Step 2: Convert to fraction form
    560,305.82/773,220.40 = 305,655.19/x
  3. Step 3: Cross multiply
    560,305.82x = 773,220.40 × 305,655.19
  4. Step 4: Simplify right side
    560,305.82x = 236,338,825,576.69
  5. Step 5: Solve for x
    x = 236,338,825,576.69/560,305.82
  6. Step 6: Final answer
    x = 421,803.27

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Double scale
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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.