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Finding the Fourth Proportional to 469,804.50, 648,087.66 and 297,430.56

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Solution

The fourth proportional to 469,804.50, 648,087.66 and 297,430.56 is: 410,300.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,804.50 : 648,087.66 = 297,430.56 : x
  2. Step 2: Convert to fraction form
    469,804.50/648,087.66 = 297,430.56/x
  3. Step 3: Cross multiply
    469,804.50x = 648,087.66 × 297,430.56
  4. Step 4: Simplify right side
    469,804.50x = 192,761,075,642.89
  5. Step 5: Solve for x
    x = 192,761,075,642.89/469,804.50
  6. Step 6: Final answer
    x = 410,300.62

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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.